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20302970112 = 2834979117
BaseRepresentation
bin10010111010001001…
…101011110100000000
31221101221121202010000
4102322021223310000
5313040030020422
613154351040000
71316061253455
oct227211536400
957357552100
1020302970112
118679551a47
123b27510000
131bb73a55a9
14da862d82c
157dc664cac
hex4ba26bd00

20302970112 has 90 divisors (see below), whose sum is σ = 60539845058. Its totient is φ = 6767649792.

The previous prime is 20302970041. The next prime is 20302970131. The reversal of 20302970112 is 21107920302.

It can be written as a sum of positive squares in only one way, i.e., 18361334016 + 1941636096 = 135504^2 + 44064^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 468823 + ... + 510294.

Almost surely, 220302970112 is an apocalyptic number.

It is an amenable number.

20302970112 is an abundant number, since it is smaller than the sum of its proper divisors (40236874946).

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

20302970112 is an frugal number, since it uses more digits than its factorization.

20302970112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979145 (or 979122 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The spelling of 20302970112 in words is "twenty billion, three hundred two million, nine hundred seventy thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 576 648 768 864 1152 1296 1728 2304 2592 3456 5184 6912 10368 20736 979117 1958234 2937351 3916468 5874702 7832936 8812053 11749404 15665872 17624106 23498808 26436159 31331744 35248212 46997616 52872318 62663488 70496424 79308477 93995232 105744636 125326976 140992848 158616954 187990464 211489272 250653952 281985696 317233908 375980928 422978544 563971392 634467816 751961856 845957088 1127942784 1268935632 1691914176 2255885568 2537871264 3383828352 5075742528 6767656704 10151485056 20302970112