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48157857 = 3211486443
BaseRepresentation
bin1011011110110…
…1010010100001
310100121200011100
42313231102201
544312022412
64440105013
71123222626
oct267552241
9110550140
1048157857
1125202790
1214165169
139c91a97
14657834d
154363edc
hex2ded4a1

48157857 has 12 divisors (see below), whose sum is σ = 75885264. Its totient is φ = 29186520.

The previous prime is 48157819. The next prime is 48157859. The reversal of 48157857 is 75875184.

It is a happy number.

It is not a de Polignac number, because 48157857 - 26 = 48157793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48157859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243123 + ... + 243320.

It is an arithmetic number, because the mean of its divisors is an integer number (6323772).

Almost surely, 248157857 is an apocalyptic number.

It is an amenable number.

48157857 is a deficient number, since it is larger than the sum of its proper divisors (27727407).

48157857 is a wasteful number, since it uses less digits than its factorization.

48157857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486460 (or 486457 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 48157857 is about 6939.5862268582. The cubic root of 48157857 is about 363.8220787478.

The spelling of 48157857 in words is "forty-eight million, one hundred fifty-seven thousand, eight hundred fifty-seven".

Divisors: 1 3 9 11 33 99 486443 1459329 4377987 5350873 16052619 48157857