Base | Representation |
---|---|
bin | 11000001011001110… |
… | …00100111011111010 |
3 | 1020111112100010111120 |
4 | 30011213010323322 |
5 | 203040113004202 |
6 | 5543521410110 |
7 | 636426643602 |
oct | 140547047372 |
9 | 36445303446 |
10 | 12979031802 |
11 | 5560363770 |
12 | 2622799936 |
13 | 12bac3c999 |
14 | 8b1a6bc02 |
15 | 50e6ae0bc |
hex | 3059c4efa |
12979031802 has 64 divisors (see below), whose sum is σ = 28704170880. Its totient is φ = 3879603200.
The previous prime is 12979031797. The next prime is 12979031833. The reversal of 12979031802 is 20813097921.
It is a super-3 number, since 3×129790318023 (a number of 31 digits) contains 333 as substring.
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, 2705518 + ... + 2710310.
It is an arithmetic number, because the mean of its divisors is an integer number (448502670).
Almost surely, 212979031802 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12979031802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14352085440).
12979031802 is an abundant number, since it is smaller than the sum of its proper divisors (15725139078).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12979031802 is a wasteful number, since it uses less digits than its factorization.
12979031802 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5359.
The product of its (nonzero) digits is 54432, while the sum is 42.
The spelling of 12979031802 in words is "twelve billion, nine hundred seventy-nine million, thirty-one thousand, eight hundred two".
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