Base | Representation |
---|---|
bin | 10111111111010110… |
… | …00000001001001101 |
3 | 1020020120212011212111 |
4 | 23333223000021031 |
5 | 202334111204303 |
6 | 5530002104021 |
7 | 634110033466 |
oct | 137753001115 |
9 | 36216764774 |
10 | 12879397453 |
11 | 550a0a1a2a |
12 | 25b534b011 |
13 | 12a33c6750 |
14 | 8a2733d6d |
15 | 505a7cb6d |
hex | 2ffac024d |
12879397453 has 16 divisors (see below), whose sum is σ = 14226653056. Its totient is φ = 11584399680.
The previous prime is 12879397417. The next prime is 12879397457. The reversal of 12879397453 is 35479397821.
It is a cyclic number.
It is not a de Polignac number, because 12879397453 - 233 = 4289462861 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 (12879397457) 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, 207976 + ... + 262702.
It is an arithmetic number, because the mean of its divisors is an integer number (889165816).
Almost surely, 212879397453 is an apocalyptic number.
12879397453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
12879397453 is a deficient number, since it is larger than the sum of its proper divisors (1347255603).
12879397453 is a wasteful number, since it uses less digits than its factorization.
12879397453 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55204.
The product of its digits is 11430720, while the sum is 58.
The spelling of 12879397453 in words is "twelve billion, eight hundred seventy-nine million, three hundred ninety-seven thousand, four hundred fifty-three".
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