Base | Representation |
---|---|
bin | 111001000101000110… |
… | …111010000000011110 |
3 | 12212012100000210121010 |
4 | 321011012322000132 |
5 | 2001004434334020 |
6 | 44053351320050 |
7 | 4266540511242 |
oct | 710506720036 |
9 | 185170023533 |
10 | 61288980510 |
11 | 23aa103920a |
12 | ba65680026 |
13 | 5a19807554 |
14 | 2d75b46422 |
15 | 18da9b7de0 |
hex | e451ba01e |
61288980510 has 16 divisors (see below), whose sum is σ = 147093553296. Its totient is φ = 16343728128.
The previous prime is 61288980491. The next prime is 61288980553. The reversal of 61288980510 is 1508988216.
It is a self number, because there is not a number n which added to its sum of digits gives 61288980510.
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, 1021482979 + ... + 1021483038.
It is an arithmetic number, because the mean of its divisors is an integer number (9193347081).
Almost surely, 261288980510 is an apocalyptic number.
61288980510 is an abundant number, since it is smaller than the sum of its proper divisors (85804572786).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61288980510 is a wasteful number, since it uses less digits than its factorization.
61288980510 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2042966027.
The product of its (nonzero) digits is 276480, while the sum is 48.
The spelling of 61288980510 in words is "sixty-one billion, two hundred eighty-eight million, nine hundred eighty thousand, five hundred ten".
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