Base | Representation |
---|---|
bin | 11010111101001101… |
… | …000100111000110010 |
3 | 2202201011110220211210 |
4 | 122331031010320302 |
5 | 433234144003430 |
6 | 21144033020550 |
7 | 2043156002340 |
oct | 327515047062 |
9 | 82634426753 |
10 | 28944125490 |
11 | 11303227975 |
12 | 57393b4756 |
13 | 29636c3997 |
14 | 1588114990 |
15 | b460ac2b0 |
hex | 6bd344e32 |
28944125490 has 32 divisors (see below), whose sum is σ = 79389601920. Its totient is φ = 6615800064.
The previous prime is 28944125453. The next prime is 28944125501. The reversal of 28944125490 is 9452144982.
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, 68914375 + ... + 68914794.
It is an arithmetic number, because the mean of its divisors is an integer number (2480925060).
Almost surely, 228944125490 is an apocalyptic number.
28944125490 is an abundant number, since it is smaller than the sum of its proper divisors (50445476430).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28944125490 is a wasteful number, since it uses less digits than its factorization.
28944125490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 137829186.
The product of its (nonzero) digits is 829440, while the sum is 48.
The spelling of 28944125490 in words is "twenty-eight billion, nine hundred forty-four million, one hundred twenty-five thousand, four hundred ninety".
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