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157655480 = 23519332039
BaseRepresentation
bin10010110010110…
…10000110111000
3101222122201122212
421121122012320
5310324433410
623351034252
73623022653
oct1131320670
9358581585
10157655480
1180aa0994
124496b988
132687c588
1416d1c89a
15dc92b05
hex965a1b8

157655480 has 32 divisors (see below), whose sum is σ = 355082400. Its totient is φ = 62998656.

The previous prime is 157655479. The next prime is 157655507. The reversal of 157655480 is 84556751.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76301 + ... + 78339.

It is an arithmetic number, because the mean of its divisors is an integer number (11096325).

Almost surely, 2157655480 is an apocalyptic number.

157655480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157655480 is an abundant number, since it is smaller than the sum of its proper divisors (197426920).

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

157655480 is a wasteful number, since it uses less digits than its factorization.

157655480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983 (or 3979 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 157655480 is about 12556.0933414817. The cubic root of 157655480 is about 540.2187956534.

The spelling of 157655480 in words is "one hundred fifty-seven million, six hundred fifty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1933 2039 3866 4078 7732 8156 9665 10195 15464 16312 19330 20390 38660 40780 77320 81560 3941387 7882774 15765548 19706935 31531096 39413870 78827740 157655480