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1372663396 = 221326397373
BaseRepresentation
bin101000111010001…
…0010111001100100
310112122220112012001
41101310102321210
510302400212041
6344112535044
746005306046
oct12164227144
93478815161
101372663396
11644918365
12323851484
1318b4c9b80
14d0437a96
1580795131
hex51d12e64

1372663396 has 12 divisors (see below), whose sum is σ = 2586942652. Its totient is φ = 633536928.

The previous prime is 1372663381. The next prime is 1372663399. The reversal of 1372663396 is 6933662731.

It can be written as a sum of positive squares in 2 ways, for example, as 155351296 + 1217312100 = 12464^2 + 34890^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1372663399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13198635 + ... + 13198738.

Almost surely, 21372663396 is an apocalyptic number.

It is an amenable number.

1372663396 is a deficient number, since it is larger than the sum of its proper divisors (1214279256).

1372663396 is a wasteful number, since it uses less digits than its factorization.

1372663396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26397390 (or 26397388 counting only the distinct ones).

The product of its digits is 734832, while the sum is 46.

The square root of 1372663396 is about 37049.4722769434. The cubic root of 1372663396 is about 1111.3598019941.

The spelling of 1372663396 in words is "one billion, three hundred seventy-two million, six hundred sixty-three thousand, three hundred ninety-six".

Divisors: 1 2 4 13 26 52 26397373 52794746 105589492 343165849 686331698 1372663396