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1372535868 = 22311173761271
BaseRepresentation
bin101000111001111…
…0011110000111100
310112122200001020210
41101303303300330
510302332121433
6344110112420
746004235204
oct12163636074
93478601223
101372535868
11644840570
123237ab710
1318b483b02
14d0403404
158076c463
hex51cf3c3c

1372535868 has 192 divisors, whose sum is σ = 3875751936. Its totient is φ = 373248000.

The previous prime is 1372535849. The next prime is 1372535893. The reversal of 1372535868 is 8685352731.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5064573 + ... + 5064843.

It is an arithmetic number, because the mean of its divisors is an integer number (20186208).

Almost surely, 21372535868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372535868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1937875968).

1372535868 is an abundant number, since it is smaller than the sum of its proper divisors (2503216068).

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

1372535868 is a wasteful number, since it uses less digits than its factorization.

1372535868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 402 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 1372535868 is about 37047.7511868129. The cubic root of 1372535868 is about 1111.3253837766.

The spelling of 1372535868 in words is "one billion, three hundred seventy-two million, five hundred thirty-five thousand, eight hundred sixty-eight".