Base | Representation |
---|---|
bin | 111001001011011011… |
… | …101001010001100100 |
3 | 12212110201200020010200 |
4 | 321023123221101210 |
5 | 2001214120032132 |
6 | 44112101350500 |
7 | 4302266400120 |
oct | 711333512144 |
9 | 185421606120 |
10 | 61395080292 |
11 | 24045a16587 |
12 | ba95108430 |
13 | 5a357a55a0 |
14 | 2d85c84580 |
15 | 18e4e74d7c |
hex | e4b6e9464 |
61395080292 has 72 divisors (see below), whose sum is σ = 191006926656. Its totient is φ = 16192108224.
The previous prime is 61395080269. The next prime is 61395080297. The reversal of 61395080292 is 29208059316.
61395080292 is a `hidden beast` number, since 6 + 139 + 508 + 0 + 2 + 9 + 2 = 666.
61395080292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×613950802922 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (61395080297) 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, 9367158 + ... + 9373709.
Almost surely, 261395080292 is an apocalyptic number.
It is an amenable number.
61395080292 is an abundant number, since it is smaller than the sum of its proper divisors (129611846364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61395080292 is a wasteful number, since it uses less digits than its factorization.
61395080292 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18740897 (or 18740892 counting only the distinct ones).
The product of its (nonzero) digits is 233280, while the sum is 45.
The spelling of 61395080292 in words is "sixty-one billion, three hundred ninety-five million, eighty thousand, two hundred ninety-two".
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