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1372670628 = 223721177447
BaseRepresentation
bin101000111010001…
…0100101010100100
310112122220220002220
41101310110222210
510302400430003
6344113032340
746005336120
oct12164245244
93478826086
101372670628
1164492283a
123238556b0
1318b500254
14d043a580
1580797353
hex51d14aa4

1372670628 has 48 divisors (see below), whose sum is σ = 3677850624. Its totient is φ = 390327840.

The previous prime is 1372670623. The next prime is 1372670707. The reversal of 1372670628 is 8260762731.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1372670628.

It is not an unprimeable number, because it can be changed into a prime (1372670623) 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 15 ways as a sum of consecutive naturals, for example, 21000 + ... + 56447.

It is an arithmetic number, because the mean of its divisors is an integer number (76621888).

Almost surely, 21372670628 is an apocalyptic number.

It is an amenable number.

1372670628 is an abundant number, since it is smaller than the sum of its proper divisors (2305179996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1372670628 is a wasteful number, since it uses less digits than its factorization.

1372670628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77672 (or 77670 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 1372670628 is about 37049.5698760458. The cubic root of 1372670628 is about 1111.3617537569.

The spelling of 1372670628 in words is "one billion, three hundred seventy-two million, six hundred seventy thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 211 422 633 844 1266 1477 2532 2954 4431 5908 8862 17724 77447 154894 232341 309788 464682 542129 929364 1084258 1626387 2168516 3252774 6505548 16341317 32682634 49023951 65365268 98047902 114389219 196095804 228778438 343167657 457556876 686335314 1372670628