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157444160 = 265492013
BaseRepresentation
bin10010110001001…
…10100001000000
3101222020222210012
421120212201000
5310301203120
623342324052
73621152606
oct1130464100
9358228705
10157444160
1180967145
1244889628
1326807333
1416ca5876
15dc501c5
hex9626840

157444160 has 28 divisors (see below), whose sum is σ = 374914668. Its totient is φ = 62977536.

The previous prime is 157444151. The next prime is 157444163. The reversal of 157444160 is 61444751.

It can be written as a sum of positive squares in 2 ways, for example, as 73685056 + 83759104 = 8584^2 + 9152^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (157444163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245687 + ... + 246326.

Almost surely, 2157444160 is an apocalyptic number.

157444160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157444160 is an abundant number, since it is smaller than the sum of its proper divisors (217470508).

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

157444160 is an equidigital number, since it uses as much as digits as its factorization.

157444160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492030 (or 492020 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 157444160 is about 12547.6754819369. The cubic root of 157444160 is about 539.9773195778.

The spelling of 157444160 in words is "one hundred fifty-seven million, four hundred forty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 492013 984026 1968052 2460065 3936104 4920130 7872208 9840260 15744416 19680520 31488832 39361040 78722080 157444160