Base | Representation |
---|---|
bin | 10111011111010100… |
… | …00010111101111101 |
3 | 1012112212021111220222 |
4 | 23233222002331331 |
5 | 201311320231141 |
6 | 5443203151125 |
7 | 624335164340 |
oct | 135752027575 |
9 | 35485244828 |
10 | 12610711421 |
11 | 5391466160 |
12 | 253b3754a5 |
13 | 125c840a29 |
14 | 878b92457 |
15 | 4dc1a714b |
hex | 2efa82f7d |
12610711421 has 16 divisors (see below), whose sum is σ = 15726182400. Its totient is φ = 9824192880.
The previous prime is 12610711417. The next prime is 12610711427. The reversal of 12610711421 is 12411701621.
It is a cyclic number.
It is not a de Polignac number, because 12610711421 - 22 = 12610711417 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12610711427) 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, 352460 + ... + 386586.
It is an arithmetic number, because the mean of its divisors is an integer number (982886400).
Almost surely, 212610711421 is an apocalyptic number.
12610711421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
12610711421 is a deficient number, since it is larger than the sum of its proper divisors (3115470979).
12610711421 is a wasteful number, since it uses less digits than its factorization.
12610711421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38944.
The product of its (nonzero) digits is 672, while the sum is 26.
The spelling of 12610711421 in words is "twelve billion, six hundred ten million, seven hundred eleven thousand, four hundred twenty-one".
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