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44987100925 = 5213532611733
BaseRepresentation
bin101001111001011100…
…001010111011111101
311022010020011111212011
4221321130022323331
51214113144212200
632400005411221
73151552022434
oct517134127375
9138106144764
1044987100925
1118096055858
128876109b11
13431c345b60
14226aa7211b
1512847415ba
hexa7970aefd

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".

Divisors: 1 5 13 25 53 65 265 325 689 1325 3445 17225 2611733 13058665 33952529 65293325 138421849 169762645 692109245 848813225 1799484037 3460546225 8997420185 44987100925