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157303680 = 273581929
BaseRepresentation
bin10010110000001…
…00001110000000
3101221222212002020
421120010032000
5310232204210
623335321440
73620026212
oct1130041600
9357885066
10157303680
1180880646
1244820280
1326788401
1416c6a5b2
15dc23770
hex9604380

157303680 has 64 divisors (see below), whose sum is σ = 501411600. Its totient is φ = 41947136.

The previous prime is 157303651. The next prime is 157303681. The reversal of 157303680 is 86303751.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157303681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39045 + ... + 42884.

Almost surely, 2157303680 is an apocalyptic number.

157303680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157303680 is an abundant number, since it is smaller than the sum of its proper divisors (344107920).

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

157303680 is an equidigital number, since it uses as much as digits as its factorization.

157303680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81951 (or 81939 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 157303680 is about 12542.0763831193. The cubic root of 157303680 is about 539.8166730223.

The spelling of 157303680 in words is "one hundred fifty-seven million, three hundred three thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 960 1920 81929 163858 245787 327716 409645 491574 655432 819290 983148 1228935 1310864 1638580 1966296 2457870 2621728 3277160 3932592 4915740 5243456 6554320 7865184 9831480 10486912 13108640 15730368 19662960 26217280 31460736 39325920 52434560 78651840 157303680