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133372008 = 23397112
BaseRepresentation
bin1111111001100…
…01100001101000
3100021222000000000
413330301201220
5233120401013
621122343000
73206433450
oct774614150
9307860000
10133372008
1169315400
12387baa60
1321829563
14139dad60
15ba97973
hex7f31868

133372008 has 240 divisors, whose sum is σ = 471203040. Its totient is φ = 34642080.

The previous prime is 133372003. The next prime is 133372027. The reversal of 133372008 is 800273331.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (133372003) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 12124723 + ... + 12124733.

It is an arithmetic number, because the mean of its divisors is an integer number (1963346).

Almost surely, 2133372008 is an apocalyptic number.

133372008 is a gapful number since it is divisible by the number (18) 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 133372008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235601520).

133372008 is an abundant number, since it is smaller than the sum of its proper divisors (337831032).

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

133372008 is an frugal number, since it uses more digits than its factorization.

133372008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 133372008 is about 11548.6799245628. The cubic root of 133372008 is about 510.9223447571.

The spelling of 133372008 in words is "one hundred thirty-three million, three hundred seventy-two thousand, eight".