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1372740125 = 5310981921
BaseRepresentation
bin101000111010010…
…0101101000011101
310112200001102102212
41101310211220131
510302410141000
6344114330205
746006045541
oct12164455035
93480042385
101372740125
1164496aa79
12323889965
1318b525a83
14d0457a21
15807acc35
hex51d25a1d

1372740125 has 8 divisors (see below), whose sum is σ = 1713179832. Its totient is φ = 1098192000.

The previous prime is 1372740091. The next prime is 1372740151. The reversal of 1372740125 is 5210472731.

It can be written as a sum of positive squares in 4 ways, for example, as 49308484 + 1323431641 = 7022^2 + 36379^2 .

It is not a de Polignac number, because 1372740125 - 210 = 1372739101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1372740091 and 1372740100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5490836 + ... + 5491085.

It is an arithmetic number, because the mean of its divisors is an integer number (214147479).

Almost surely, 21372740125 is an apocalyptic number.

It is an amenable number.

1372740125 is a deficient number, since it is larger than the sum of its proper divisors (340439707).

1372740125 is an equidigital number, since it uses as much as digits as its factorization.

1372740125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10981936 (or 10981926 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 1372740125 is about 37050.5077563048. The cubic root of 1372740125 is about 1111.3805091677.

The spelling of 1372740125 in words is "one billion, three hundred seventy-two million, seven hundred forty thousand, one hundred twenty-five".

Divisors: 1 5 25 125 10981921 54909605 274548025 1372740125