Base | Representation |
---|---|
bin | 111010010011101010… |
… | …0010011010010010000 |
3 | 102222012100122020121110 |
4 | 1310213110103102100 |
5 | 4022414200404010 |
6 | 133304455453320 |
7 | 12021624521604 |
oct | 1644724232220 |
9 | 388170566543 |
10 | 125213684880 |
11 | 491149517a9 |
12 | 20325987240 |
13 | ba663b20cb |
14 | 60bb94d504 |
15 | 33cca6b120 |
hex | 1d27513490 |
125213684880 has 160 divisors (see below), whose sum is σ = 397857499776. Its totient is φ = 32558948352.
The previous prime is 125213684863. The next prime is 125213684933. The reversal of 125213684880 is 88486312521.
It is a super-2 number, since 2×1252136848802 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (48).
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, 6316264 + ... + 6336056.
Almost surely, 2125213684880 is an apocalyptic number.
125213684880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 125213684880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198928749888).
125213684880 is an abundant number, since it is smaller than the sum of its proper divisors (272643814896).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
125213684880 is a wasteful number, since it uses less digits than its factorization.
125213684880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20465 (or 20459 counting only the distinct ones).
The product of its (nonzero) digits is 737280, while the sum is 48.
The spelling of 125213684880 in words is "one hundred twenty-five billion, two hundred thirteen million, six hundred eighty-four thousand, eight hundred eighty".
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