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52957971 = 32115310093
BaseRepresentation
bin1100101000000…
…1001100010011
310200122112200100
43022001030103
5102024123341
65131023443
71212064263
oct312011423
9120575610
1052957971
1127991120
121589ab83
13ac828a1
1470677a3
1549b13b6
hex3281313

52957971 has 24 divisors (see below), whose sum is σ = 85031856. Its totient is φ = 31487040.

The previous prime is 52957969. The next prime is 52957979. The reversal of 52957971 is 17975925.

52957971 is a `hidden beast` number, since 5 + 2 + 9 + 579 + 71 = 666.

It is not a de Polignac number, because 52957971 - 21 = 52957969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52957979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201 + ... + 10293.

It is an arithmetic number, because the mean of its divisors is an integer number (3542994).

Almost surely, 252957971 is an apocalyptic number.

52957971 is a deficient number, since it is larger than the sum of its proper divisors (32073885).

52957971 is a wasteful number, since it uses less digits than its factorization.

52957971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163 (or 10160 counting only the distinct ones).

The product of its digits is 198450, while the sum is 45.

The square root of 52957971 is about 7277.2227532212. Note that the first 3 decimals coincide. The cubic root of 52957971 is about 375.5292580111.

The spelling of 52957971 in words is "fifty-two million, nine hundred fifty-seven thousand, nine hundred seventy-one".

Divisors: 1 3 9 11 33 53 99 159 477 583 1749 5247 10093 30279 90837 111023 333069 534929 999207 1604787 4814361 5884219 17652657 52957971