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155676140 = 22517457871
BaseRepresentation
bin10010100011101…
…10110111101100
3101211221011111222
421101312313230
5304323114030
623240402512
73600140204
oct1121666754
9354834458
10155676140
117a969874
1244176438
1326338679
1416965404
15da013e5
hex9476dec

155676140 has 24 divisors (see below), whose sum is σ = 346151232. Its totient is φ = 58607360.

The previous prime is 155676137. The next prime is 155676163. The reversal of 155676140 is 41676551.

It is a self number, because there is not a number n which added to its sum of digits gives 155676140.

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, 228596 + ... + 229275.

It is an arithmetic number, because the mean of its divisors is an integer number (14422968).

Almost surely, 2155676140 is an apocalyptic number.

155676140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155676140 is an abundant number, since it is smaller than the sum of its proper divisors (190475092).

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

155676140 is a wasteful number, since it uses less digits than its factorization.

155676140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457897 (or 457895 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 155676140 is about 12477.0244850285. The cubic root of 155676140 is about 537.9484802082.

The spelling of 155676140 in words is "one hundred fifty-five million, six hundred seventy-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 457871 915742 1831484 2289355 4578710 7783807 9157420 15567614 31135228 38919035 77838070 155676140