Base | Representation |
---|---|
bin | 11000111011001001… |
… | …10001000101010100 |
3 | 1021112112212021002121 |
4 | 30131210301011110 |
5 | 204401024020010 |
6 | 10051442545324 |
7 | 652411204144 |
oct | 143544610524 |
9 | 37475767077 |
10 | 13381079380 |
11 | 57472a7a99 |
12 | 2715368244 |
13 | 135331a266 |
14 | 90d206924 |
15 | 534b293da |
hex | 31d931154 |
13381079380 has 24 divisors (see below), whose sum is σ = 29322018432. Its totient is φ = 5119717152.
The previous prime is 13381079359. The next prime is 13381079381. The reversal of 13381079380 is 8397018331.
It is a super-2 number, since 2×133810793802 (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 (13381079381) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14544192 + ... + 14545111.
It is an arithmetic number, because the mean of its divisors is an integer number (1221750768).
Almost surely, 213381079380 is an apocalyptic number.
13381079380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13381079380 is an abundant number, since it is smaller than the sum of its proper divisors (15940939052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13381079380 is a wasteful number, since it uses less digits than its factorization.
13381079380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29089335 (or 29089333 counting only the distinct ones).
The product of its (nonzero) digits is 108864, while the sum is 43.
The spelling of 13381079380 in words is "thirteen billion, three hundred eighty-one million, seventy-nine thousand, three hundred eighty".
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