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152321980 = 22571107269
BaseRepresentation
bin10010001010000…
…11111110111100
3101121121202110211
421011003332330
5302443300410
623040442204
73526500256
oct1105037674
9347552424
10152321980
1178a88838
1243019364
1325732a65
1416330cd6
15d58c68a
hex9143fbc

152321980 has 24 divisors (see below), whose sum is σ = 324384480. Its totient is φ = 60070080.

The previous prime is 152321957. The next prime is 152321999. The reversal of 152321980 is 89123251.

It is a super-2 number, since 2×1523219802 = 46403971182240800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52215 + ... + 55054.

It is an arithmetic number, because the mean of its divisors is an integer number (13516020).

Almost surely, 2152321980 is an apocalyptic number.

152321980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152321980 is an abundant number, since it is smaller than the sum of its proper divisors (172062500).

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

152321980 is a wasteful number, since it uses less digits than its factorization.

152321980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107349 (or 107347 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 152321980 is about 12341.8791113833. The cubic root of 152321980 is about 534.0568937871.

The spelling of 152321980 in words is "one hundred fifty-two million, three hundred twenty-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 107269 214538 429076 536345 1072690 2145380 7616099 15232198 30464396 38080495 76160990 152321980