Base | Representation |
---|---|
bin | 101001111001011100… |
… | …001010111011111101 |
3 | 11022010020011111212011 |
4 | 221321130022323331 |
5 | 1214113144212200 |
6 | 32400005411221 |
7 | 3151552022434 |
oct | 517134127375 |
9 | 138106144764 |
10 | 44987100925 |
11 | 18096055858 |
12 | 8876109b11 |
13 | 431c345b60 |
14 | 226aa7211b |
15 | 12847415ba |
hex | a7970aefd |
44987100925 has 24 divisors (see below), whose sum is σ = 61208598024. Its totient is φ = 32594415360.
The previous prime is 44987100923. The next prime is 44987100997. The reversal of 44987100925 is 52900178944.
44987100925 = 1499782 + 1499792.
It can be written as a sum of positive squares in 12 ways, for example, as 22493700441 + 22493400484 = 149979^2 + 149978^2 .
It is not a de Polignac number, because 44987100925 - 21 = 44987100923 is a prime.
It is a super-2 number, since 2×449871009252 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (44987100923) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1288642 + ... + 1323091.
It is an arithmetic number, because the mean of its divisors is an integer number (2550358251).
Almost surely, 244987100925 is an apocalyptic number.
44987100925 is the 149979-th centered square number.
It is an amenable number.
44987100925 is a deficient number, since it is larger than the sum of its proper divisors (16221497099).
44987100925 is a wasteful number, since it uses less digits than its factorization.
44987100925 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2611809 (or 2611804 counting only the distinct ones).
The product of its (nonzero) digits is 725760, while the sum is 49.
The spelling of 44987100925 in words is "forty-four billion, nine hundred eighty-seven million, one hundred thousand, nine hundred twenty-five".
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