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153902980 = 22571137273
BaseRepresentation
bin10010010110001…
…01111110000100
3101201121002012101
421023011332010
5303344343410
623134401444
73546103510
oct1113057604
9351532171
10153902980
1179968650
1243660284
1325b6756a
1416623140
15d7a0d3a
hex92c5f84

153902980 has 144 divisors (see below), whose sum is σ = 419803776. Its totient is φ = 46033920.

The previous prime is 153902929. The next prime is 153902993. The reversal of 153902980 is 89209351.

It is a super-2 number, since 2×1539029802 = 47372254505760800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2108224 + ... + 2108296.

It is an arithmetic number, because the mean of its divisors is an integer number (2915304).

Almost surely, 2153902980 is an apocalyptic number.

153902980 is a gapful number since it is divisible by the number (10) 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 153902980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209901888).

153902980 is an abundant number, since it is smaller than the sum of its proper divisors (265900796).

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

153902980 is a wasteful number, since it uses less digits than its factorization.

153902980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 153902980 is about 12405.7639829234. The cubic root of 153902980 is about 535.8982551736.

The spelling of 153902980 in words is "one hundred fifty-three million, nine hundred two thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 37 44 55 70 73 74 77 110 140 146 148 154 185 220 259 292 308 365 370 385 407 511 518 730 740 770 803 814 1022 1036 1295 1369 1460 1540 1606 1628 2035 2044 2555 2590 2701 2738 2849 3212 4015 4070 5110 5180 5402 5476 5621 5698 6845 8030 8140 9583 10220 10804 11242 11396 13505 13690 14245 15059 16060 18907 19166 22484 27010 27380 28105 28490 29711 30118 37814 38332 47915 54020 56210 56980 59422 60236 75295 75628 94535 95830 99937 105413 112420 118844 148555 150590 189070 191660 199874 207977 210826 297110 301180 378140 399748 415954 421652 499685 527065 594220 699559 831908 999370 1039885 1054130 1099307 1399118 1998740 2079770 2108260 2198614 2798236 3497795 4159540 4397228 5496535 6995590 7695149 10993070 13991180 15390298 21986140 30780596 38475745 76951490 153902980