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157550830 = 2542137423
BaseRepresentation
bin10010110010000…
…00100011101110
3101222110102002221
421121000203232
5310313111310
623344505554
73622105603
oct1131004356
9358412087
10157550830
1180a2a2a8
124491b2ba
1326843a58
1416cd26aa
15dc71ada
hex96408ee

157550830 has 16 divisors (see below), whose sum is σ = 284272704. Its totient is φ = 62868960.

The previous prime is 157550819. The next prime is 157550857. The reversal of 157550830 is 38055751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14502 + ... + 22921.

It is an arithmetic number, because the mean of its divisors is an integer number (17767044).

Almost surely, 2157550830 is an apocalyptic number.

157550830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157550830 is a deficient number, since it is larger than the sum of its proper divisors (126721874).

157550830 is a wasteful number, since it uses less digits than its factorization.

157550830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37851.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 157550830 is about 12551.9253503198. The cubic root of 157550830 is about 540.0992387343.

The spelling of 157550830 in words is "one hundred fifty-seven million, five hundred fifty thousand, eight hundred thirty".

Divisors: 1 2 5 10 421 842 2105 4210 37423 74846 187115 374230 15755083 31510166 78775415 157550830