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157953980 = 2258395153
BaseRepresentation
bin10010110101000…
…10111110111100
3102000012220010102
421122202332330
5310414011410
623401300232
73625405142
oct1132427674
9360186112
10157953980
1181185188
1244a94678
13269553c2
1416d99592
15dd012a5
hex96a2fbc

157953980 has 24 divisors (see below), whose sum is σ = 335703312. Its totient is φ = 62419712.

The previous prime is 157953947. The next prime is 157953989. The reversal of 157953980 is 89359751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157953989) 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, 45917 + ... + 49236.

It is an arithmetic number, because the mean of its divisors is an integer number (13987638).

Almost surely, 2157953980 is an apocalyptic number.

157953980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157953980 is an abundant number, since it is smaller than the sum of its proper divisors (177749332).

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

157953980 is a wasteful number, since it uses less digits than its factorization.

157953980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95245 (or 95243 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 47.

The square root of 157953980 is about 12567.9743793501. The cubic root of 157953980 is about 540.5595252102.

The spelling of 157953980 in words is "one hundred fifty-seven million, nine hundred fifty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 95153 190306 380612 475765 951530 1903060 7897699 15795398 31590796 39488495 78976990 157953980