Base | Representation |
---|---|
bin | 10110101000111100… |
… | …01111010011001010 |
3 | 1011101002002020201020 |
4 | 23110132033103022 |
5 | 144343041200440 |
6 | 5330031533310 |
7 | 610126443030 |
oct | 132436172312 |
9 | 34332066636 |
10 | 12154631370 |
11 | 5177a774a2 |
12 | 243268a236 |
13 | 11b91c578b |
14 | 834390550 |
15 | 4b21173d0 |
hex | 2d478f4ca |
12154631370 has 32 divisors (see below), whose sum is σ = 33338418048. Its totient is φ = 2778201408.
The previous prime is 12154631329. The next prime is 12154631381. The reversal of 12154631370 is 7313645121.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28939389 + ... + 28939808.
It is an arithmetic number, because the mean of its divisors is an integer number (1041825564).
Almost surely, 212154631370 is an apocalyptic number.
12154631370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12154631370 is an abundant number, since it is smaller than the sum of its proper divisors (21183786678).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12154631370 is a wasteful number, since it uses less digits than its factorization.
12154631370 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57879214.
The product of its (nonzero) digits is 15120, while the sum is 33.
The spelling of 12154631370 in words is "twelve billion, one hundred fifty-four million, six hundred thirty-one thousand, three hundred seventy".
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