Base | Representation |
---|---|
bin | 1111010100100… |
… | …0111101010100 |
3 | 11110220211212001 |
4 | 3311020331110 |
5 | 112422340342 |
6 | 10213205044 |
7 | 1410134455 |
oct | 365107524 |
9 | 143824761 |
10 | 64261972 |
11 | 33301a75 |
12 | 19630784 |
13 | 1040cb48 |
14 | 876b12c |
15 | 59958b7 |
hex | 3d48f54 |
64261972 has 24 divisors (see below), whose sum is σ = 121613184. Its totient is φ = 29596032.
The previous prime is 64261961. The next prime is 64261987. The reversal of 64261972 is 27916246.
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, 6858 + ... + 13249.
It is an arithmetic number, because the mean of its divisors is an integer number (5067216).
Almost surely, 264261972 is an apocalyptic number.
It is an amenable number.
64261972 is a deficient number, since it is larger than the sum of its proper divisors (57351212).
64261972 is a wasteful number, since it uses less digits than its factorization.
64261972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20175 (or 20173 counting only the distinct ones).
The product of its digits is 36288, while the sum is 37.
The square root of 64261972 is about 8016.3565289974. The cubic root of 64261972 is about 400.5450320130.
The spelling of 64261972 in words is "sixty-four million, two hundred sixty-one thousand, nine hundred seventy-two".
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