Base | Representation |
---|---|
bin | 1101101000000… |
… | …0001001011000 |
3 | 10222112102022022 |
4 | 3122000021120 |
5 | 104112213432 |
6 | 5400514012 |
7 | 1262515136 |
oct | 332001130 |
9 | 128472268 |
10 | 57147992 |
11 | 2a293150 |
12 | 1717b908 |
13 | babbaa5 |
14 | 7838756 |
15 | 503cb12 |
hex | 3680258 |
57147992 has 32 divisors (see below), whose sum is σ = 119108880. Its totient is φ = 25484160.
The previous prime is 57147983. The next prime is 57148019. The reversal of 57147992 is 29974175.
It is a super-3 number, since 3×571479923 (a number of 24 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (44).
It is a congruent number.
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, 1463 + ... + 10790.
Almost surely, 257147992 is an apocalyptic number.
It is an amenable number.
57147992 is an abundant number, since it is smaller than the sum of its proper divisors (61960888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57147992 is a wasteful number, since it uses less digits than its factorization.
57147992 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12323 (or 12319 counting only the distinct ones).
The product of its digits is 158760, while the sum is 44.
The square root of 57147992 is about 7559.6290914303. The cubic root of 57147992 is about 385.1828939313.
The spelling of 57147992 in words is "fifty-seven million, one hundred forty-seven thousand, nine hundred ninety-two".
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