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157903680 = 26351119787
BaseRepresentation
bin10010110100101…
…10101101000000
3102000010100010110
421122112231000
5310410404210
623400231320
73625105404
oct1132265500
9360110113
10157903680
1181150410
1244a6b540
132693853c
1416d85104
15dce1420
hex9696b40

157903680 has 224 divisors, whose sum is σ = 576437760. Its totient is φ = 36218880.

The previous prime is 157903631. The next prime is 157903687. The reversal of 157903680 is 86309751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157903687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200247 + ... + 201033.

Almost surely, 2157903680 is an apocalyptic number.

157903680 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 157903680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288218880).

157903680 is an abundant number, since it is smaller than the sum of its proper divisors (418534080).

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

157903680 is a wasteful number, since it uses less digits than its factorization.

157903680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 157903680 is about 12565.9731019925. The cubic root of 157903680 is about 540.5021392323.

The spelling of 157903680 in words is "one hundred fifty-seven million, nine hundred three thousand, six hundred eighty".