Base | Representation |
---|---|
bin | 111111111100100111… |
… | …000101111010011110 |
3 | 20120020012211021112010 |
4 | 333330213011322132 |
5 | 2111110112200320 |
6 | 51313154052050 |
7 | 4650344414043 |
oct | 777447057236 |
9 | 216205737463 |
10 | 68662615710 |
11 | 271352904a7 |
12 | 11382b7a026 |
13 | 66233505c0 |
14 | 34751631ca |
15 | 1bbced8ae0 |
hex | ffc9c5e9e |
68662615710 has 32 divisors (see below), whose sum is σ = 177466453920. Its totient is φ = 16901566848.
The previous prime is 68662615709. The next prime is 68662615717. The reversal of 68662615710 is 1751626686.
It is a super-2 number, since 2×686626157102 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 68662615710.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68662615717) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88028605 + ... + 88029384.
It is an arithmetic number, because the mean of its divisors is an integer number (5545826685).
Almost surely, 268662615710 is an apocalyptic number.
68662615710 is an abundant number, since it is smaller than the sum of its proper divisors (108803838210).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68662615710 is a wasteful number, since it uses less digits than its factorization.
68662615710 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 176058012.
The product of its (nonzero) digits is 725760, while the sum is 48.
The spelling of 68662615710 in words is "sixty-eight billion, six hundred sixty-two million, six hundred fifteen thousand, seven hundred ten".
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