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1372133280 = 253572227257
BaseRepresentation
bin101000111001001…
…0001011110100000
310112121220121000010
41101302101132200
510302231231110
6344053324520
746000640400
oct12162213640
93477817003
101372133280
11644596051
12323636740
1318b3727ab
14d033a800
15806dd020
hex51c917a0

1372133280 has 288 divisors, whose sum is σ = 5069687616. Its totient is φ = 311033856.

The previous prime is 1372133251. The next prime is 1372133299. The reversal of 1372133280 is 823312731.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5338912 + ... + 5339168.

It is an arithmetic number, because the mean of its divisors is an integer number (17603082).

Almost surely, 21372133280 is an apocalyptic number.

1372133280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372133280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2534843808).

1372133280 is an abundant number, since it is smaller than the sum of its proper divisors (3697554336).

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

1372133280 is a wasteful number, since it uses less digits than its factorization.

1372133280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1372133280 is about 37042.3174221052. The cubic root of 1372133280 is about 1111.2167163032.

The spelling of 1372133280 in words is "one billion, three hundred seventy-two million, one hundred thirty-three thousand, two hundred eighty".