Base | Representation |
---|---|
bin | 11000111011111001… |
… | …10101111001110001 |
3 | 1021112222201220102122 |
4 | 30131330311321301 |
5 | 204404132444302 |
6 | 10052230124025 |
7 | 652515641141 |
oct | 143574657161 |
9 | 37488656378 |
10 | 13387390577 |
11 | 574a918760 |
12 | 27174b0615 |
13 | 1354719ab2 |
14 | 90ddaa921 |
15 | 5354743a2 |
hex | 31df35e71 |
13387390577 has 4 divisors (see below), whose sum is σ = 14604426096. Its totient is φ = 12170355060.
The previous prime is 13387390567. The next prime is 13387390651. The reversal of 13387390577 is 77509378331.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 13387390577 - 228 = 13118955121 is a prime.
It is a super-2 number, since 2×133873905772 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13387390567) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608517743 + ... + 608517764.
It is an arithmetic number, because the mean of its divisors is an integer number (3651106524).
Almost surely, 213387390577 is an apocalyptic number.
It is an amenable number.
13387390577 is a deficient number, since it is larger than the sum of its proper divisors (1217035519).
13387390577 is a wasteful number, since it uses less digits than its factorization.
13387390577 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1217035518.
The product of its (nonzero) digits is 3333960, while the sum is 53.
The spelling of 13387390577 in words is "thirteen billion, three hundred eighty-seven million, three hundred ninety thousand, five hundred seventy-seven".
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