Base | Representation |
---|---|
bin | 1110101000110… |
… | …0100010001110 |
3 | 11021112002102020 |
4 | 3222030202032 |
5 | 111204034123 |
6 | 10031511010 |
7 | 1343555310 |
oct | 352144216 |
9 | 137462366 |
10 | 61393038 |
11 | 31722553 |
12 | 18688466 |
13 | c947055 |
14 | 82217b0 |
15 | 55ca7e3 |
hex | 3a8c88e |
61393038 has 32 divisors (see below), whose sum is σ = 142427904. Its totient is φ = 17278272.
The previous prime is 61393021. The next prime is 61393043. The reversal of 61393038 is 83039316.
It is a super-2 number, since 2×613930382 = 7538210229738888, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8095 + ... + 13722.
It is an arithmetic number, because the mean of its divisors is an integer number (4450872).
Almost surely, 261393038 is an apocalyptic number.
61393038 is an abundant number, since it is smaller than the sum of its proper divisors (81034866).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61393038 is a wasteful number, since it uses less digits than its factorization.
61393038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21896.
The product of its (nonzero) digits is 11664, while the sum is 33.
The square root of 61393038 is about 7835.3709548432. The cubic root of 61393038 is about 394.4933695901.
The spelling of 61393038 in words is "sixty-one million, three hundred ninety-three thousand, thirty-eight".
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