Base | Representation |
---|---|
bin | 11000000101010010… |
… | …10101101001010000 |
3 | 1020101001202010112021 |
4 | 30002221111221100 |
5 | 202434344333010 |
6 | 5534543341224 |
7 | 635254114300 |
oct | 140251255120 |
9 | 36331663467 |
10 | 12929292880 |
11 | 5535281119 |
12 | 2609bb1814 |
13 | 12b084637a |
14 | 8a9201600 |
15 | 50a1368da |
hex | 302a55a50 |
12929292880 has 120 divisors (see below), whose sum is σ = 37025619048. Its totient is φ = 4172120064.
The previous prime is 12929292851. The next prime is 12929292889. The reversal of 12929292880 is 8829292921.
It can be written as a sum of positive squares in 4 ways, for example, as 6399360016 + 6529932864 = 79996^2 + 80808^2 .
It is a super-2 number, since 2×129292928802 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12929292889) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30369 + ... + 163648.
Almost surely, 212929292880 is an apocalyptic number.
12929292880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12929292880 is an abundant number, since it is smaller than the sum of its proper divisors (24096326168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12929292880 is a wasteful number, since it uses less digits than its factorization.
12929292880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 194061 (or 194048 counting only the distinct ones).
The product of its (nonzero) digits is 746496, while the sum is 52.
It can be divided in two parts, 12929 and 292880, that added together give a square (305809 = 5532).
The spelling of 12929292880 in words is "twelve billion, nine hundred twenty-nine million, two hundred ninety-two thousand, eight hundred eighty".
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