Base | Representation |
---|---|
bin | 11000010011111110… |
… | …01010011001111000 |
3 | 1020200122111101112111 |
4 | 30021333022121320 |
5 | 203212412021040 |
6 | 5555103222104 |
7 | 641311014160 |
oct | 141177123170 |
9 | 36618441474 |
10 | 13052454520 |
11 | 55988522a6 |
12 | 26432a7934 |
13 | 1300209391 |
14 | 8bb7015a0 |
15 | 515d63dea |
hex | 309fca678 |
13052454520 has 64 divisors (see below), whose sum is σ = 34646169600. Its totient is φ = 4330765440.
The previous prime is 13052454469. The next prime is 13052454557. The reversal of 13052454520 is 2545425031.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a congruent number.
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, 743190 + ... + 760549.
It is an arithmetic number, because the mean of its divisors is an integer number (541346400).
Almost surely, 213052454520 is an apocalyptic number.
13052454520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13052454520 is an abundant number, since it is smaller than the sum of its proper divisors (21593715080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13052454520 is a wasteful number, since it uses less digits than its factorization.
13052454520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1503788 (or 1503784 counting only the distinct ones).
The product of its (nonzero) digits is 24000, while the sum is 31.
Adding to 13052454520 its reverse (2545425031), we get a palindrome (15597879551).
The spelling of 13052454520 in words is "thirteen billion, fifty-two million, four hundred fifty-four thousand, five hundred twenty".
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