Base | Representation |
---|---|
bin | 111100010111111… |
… | …010010000110001 |
3 | 2121120221200211122 |
4 | 330113322100301 |
5 | 4033300312123 |
6 | 244301552025 |
7 | 34046341613 |
oct | 7427722061 |
9 | 2546850748 |
10 | 1012900913 |
11 | 47a8354a2 |
12 | 243275615 |
13 | 131b0626b |
14 | 98748db3 |
15 | 5ddcdbc8 |
hex | 3c5fa431 |
1012900913 has 16 divisors (see below), whose sum is σ = 1068503040. Its totient is φ = 958910400.
The previous prime is 1012900877. The next prime is 1012900927. The reversal of 1012900913 is 3190092101.
It is a cyclic number.
It is not a de Polignac number, because 1012900913 - 210 = 1012899889 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1012900943) 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, 371168 + ... + 373886.
It is an arithmetic number, because the mean of its divisors is an integer number (66781440).
Almost surely, 21012900913 is an apocalyptic number.
It is an amenable number.
1012900913 is a deficient number, since it is larger than the sum of its proper divisors (55602127).
1012900913 is a wasteful number, since it uses less digits than its factorization.
1012900913 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3008.
The product of its (nonzero) digits is 486, while the sum is 26.
The square root of 1012900913 is about 31826.1042699228. The cubic root of 1012900913 is about 1004.2819431265.
The spelling of 1012900913 in words is "one billion, twelve million, nine hundred thousand, nine hundred thirteen".
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