Base | Representation |
---|---|
bin | 1101101000001… |
… | …0001100010100 |
3 | 10222112211210200 |
4 | 3122002030110 |
5 | 104113000442 |
6 | 5401020500 |
7 | 1262551440 |
oct | 332021424 |
9 | 128484720 |
10 | 57156372 |
11 | 2a299479 |
12 | 17184730 |
13 | bac2850 |
14 | 783b820 |
15 | 504034c |
hex | 3682314 |
57156372 has 144 divisors (see below), whose sum is σ = 181009920. Its totient is φ = 14805504.
The previous prime is 57156347. The next prime is 57156391. The reversal of 57156372 is 27365175.
57156372 is a `hidden beast` number, since 5 + 7 + 15 + 637 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239029 + ... + 239267.
Almost surely, 257156372 is an apocalyptic number.
57156372 is a gapful number since it is divisible by the number (52) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57156372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90504960).
57156372 is an abundant number, since it is smaller than the sum of its proper divisors (123853548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57156372 is a wasteful number, since it uses less digits than its factorization.
57156372 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 342 (or 337 counting only the distinct ones).
The product of its digits is 44100, while the sum is 36.
The square root of 57156372 is about 7560.1833311104. The cubic root of 57156372 is about 385.2017203431.
The spelling of 57156372 in words is "fifty-seven million, one hundred fifty-six thousand, three hundred seventy-two".
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