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157270974 = 23737310039
BaseRepresentation
bin10010101111111…
…00001110111110
3101221221012012220
421113330032332
5310230132344
623334510210
73616531650
oct1127741676
9357835186
10157270974
1180859013
1244805366
1326776563
1416c5c6d0
15dc18c19
hex95fc3be

157270974 has 32 divisors (see below), whose sum is σ = 360476160. Its totient is φ = 44809632.

The previous prime is 157270937. The next prime is 157271003. The reversal of 157270974 is 479072751.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10647 + ... + 20685.

It is an arithmetic number, because the mean of its divisors is an integer number (11264880).

Almost surely, 2157270974 is an apocalyptic number.

157270974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

157270974 is an abundant number, since it is smaller than the sum of its proper divisors (203205186).

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

157270974 is a wasteful number, since it uses less digits than its factorization.

157270974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10424.

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 157270974 is about 12540.7724642464. The cubic root of 157270974 is about 539.7792581997.

The spelling of 157270974 in words is "one hundred fifty-seven million, two hundred seventy thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 373 746 1119 2238 2611 5222 7833 10039 15666 20078 30117 60234 70273 140546 210819 421638 3744547 7489094 11233641 22467282 26211829 52423658 78635487 157270974