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1372086725 = 52376124317
BaseRepresentation
bin101000111001000…
…0110000111000101
310112121211020010212
41101302012013011
510302223233400
6344052325205
746000354562
oct12162060705
93477736125
101372086725
11644564079
12323613805
1318b357549
14d0327869
15806ce335
hex51c861c5

1372086725 has 24 divisors (see below), whose sum is σ = 1776089448. Its totient is φ = 1050451200.

The previous prime is 1372086721. The next prime is 1372086733. The reversal of 1372086725 is 5276802731.

It can be written as a sum of positive squares in 12 ways, for example, as 333829441 + 1038257284 = 18271^2 + 32222^2 .

It is not a de Polignac number, because 1372086725 - 22 = 1372086721 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372086721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44267 + ... + 68583.

It is an arithmetic number, because the mean of its divisors is an integer number (74003727).

Almost surely, 21372086725 is an apocalyptic number.

It is an amenable number.

1372086725 is a deficient number, since it is larger than the sum of its proper divisors (404002723).

1372086725 is a wasteful number, since it uses less digits than its factorization.

1372086725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24425 (or 24420 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 1372086725 is about 37041.6890138665. The cubic root of 1372086725 is about 1111.2041487001.

The spelling of 1372086725 in words is "one billion, three hundred seventy-two million, eighty-six thousand, seven hundred twenty-five".

Divisors: 1 5 25 37 61 185 305 925 1525 2257 11285 24317 56425 121585 607925 899729 1483337 4498645 7416685 22493225 37083425 54883469 274417345 1372086725