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20033473488 = 2437791136679
BaseRepresentation
bin10010101010000101…
…101000101111010000
31220201011111220020120
4102222011220233100
5312012032122423
613111522510240
71306306500150
oct225205505720
956634456216
1020033473488
118550412166
123a71205380
131b735c7932
14d8091a760
157c3b7dee3
hex4aa168bd0

20033473488 has 160 divisors (see below), whose sum is σ = 60434227200. Its totient is φ = 5600544768.

The previous prime is 20033473393. The next prime is 20033473531. The reversal of 20033473488 is 88437433002.

It is a super-2 number, since 2×200334734882 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2996133 + ... + 3002811.

It is an arithmetic number, because the mean of its divisors is an integer number (377713920).

Almost surely, 220033473488 is an apocalyptic number.

20033473488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20033473488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30217113600).

20033473488 is an abundant number, since it is smaller than the sum of its proper divisors (40400753712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20033473488 is a wasteful number, since it uses less digits than its factorization.

20033473488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889 (or 6883 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

It can be divided in two parts, 20033 and 473488, that added together give a triangular number (493521 = T993).

The spelling of 20033473488 in words is "twenty billion, thirty-three million, four hundred seventy-three thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 79 84 112 113 158 168 226 237 316 336 339 452 474 553 632 678 791 904 948 1106 1264 1356 1582 1659 1808 1896 2212 2373 2712 3164 3318 3792 4424 4746 5424 6328 6636 6679 8848 8927 9492 12656 13272 13358 17854 18984 20037 26544 26716 26781 35708 37968 40074 46753 53432 53562 62489 71416 80148 93506 106864 107124 124978 140259 142832 160296 187012 187467 214248 249956 280518 320592 374024 374934 428496 499912 527641 561036 748048 749868 754727 999824 1055282 1122072 1499736 1509454 1582923 2110564 2244144 2264181 2999472 3018908 3165846 3693487 4221128 4528362 5283089 6037816 6331692 7386974 8442256 9056724 10566178 11080461 12075632 12663384 14773948 15849267 18113448 21132356 22160922 25326768 29547896 31698534 36226896 42264712 44321844 59095792 59623433 63397068 84529424 88643688 119246866 126794136 177287376 178870299 238493732 253588272 357740598 417364031 476987464 715481196 834728062 953974928 1252092093 1430962392 1669456124 2504184186 2861924784 3338912248 5008368372 6677824496 10016736744 20033473488