Base | Representation |
---|---|
bin | 10111101101110001… |
… | …01101011110100110 |
3 | 1012212022111102012000 |
4 | 23312320231132212 |
5 | 202033342333240 |
6 | 5503214510130 |
7 | 630340116033 |
oct | 136670553646 |
9 | 35768442160 |
10 | 12731996070 |
11 | 5443975102 |
12 | 2573b05346 |
13 | 127b9c75b1 |
14 | 88ad2438a |
15 | 4e7b63430 |
hex | 2f6e2d7a6 |
12731996070 has 64 divisors (see below), whose sum is σ = 33971927040. Its totient is φ = 3393205344.
The previous prime is 12731996059. The next prime is 12731996093. The reversal of 12731996070 is 7069913721.
12731996070 is a `hidden beast` number, since 1 + 2 + 7 + 31 + 9 + 9 + 607 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 479277 + ... + 505143.
It is an arithmetic number, because the mean of its divisors is an integer number (530811360).
Almost surely, 212731996070 is an apocalyptic number.
12731996070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12731996070 is an abundant number, since it is smaller than the sum of its proper divisors (21239930970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12731996070 is a wasteful number, since it uses less digits than its factorization.
12731996070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27706 (or 27700 counting only the distinct ones).
The product of its (nonzero) digits is 142884, while the sum is 45.
The spelling of 12731996070 in words is "twelve billion, seven hundred thirty-one million, nine hundred ninety-six thousand, seventy".
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