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1372740733 = 72132155009
BaseRepresentation
bin101000111010010…
…0101110001111101
310112200001110021101
41101310211301331
510302410200413
6344114333101
746006050400
oct12164456175
93480043241
101372740733
11644970481
1232388a191
1318b526130
14d0457d37
15807acedd
hex51d25c7d

1372740733 has 12 divisors (see below), whose sum is σ = 1719697980. Its totient is φ = 1086124032.

The previous prime is 1372740731. The next prime is 1372740739. The reversal of 1372740733 is 3370472731.

It can be written as a sum of positive squares in 2 ways, for example, as 813276324 + 559464409 = 28518^2 + 23653^2 .

It is not a de Polignac number, because 1372740733 - 21 = 1372740731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1372740692 and 1372740701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372740731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1076868 + ... + 1078141.

It is an arithmetic number, because the mean of its divisors is an integer number (143308165).

Almost surely, 21372740733 is an apocalyptic number.

1372740733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1372740733 is a deficient number, since it is larger than the sum of its proper divisors (346957247).

1372740733 is a wasteful number, since it uses less digits than its factorization.

1372740733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155036 (or 2155029 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 37.

The square root of 1372740733 is about 37050.5159613196. The cubic root of 1372740733 is about 1111.3806732481.

The spelling of 1372740733 in words is "one billion, three hundred seventy-two million, seven hundred forty thousand, seven hundred thirty-three".

Divisors: 1 7 13 49 91 637 2155009 15085063 28015117 105595441 196105819 1372740733