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672698880 = 2932574397
BaseRepresentation
bin101000000110001…
…001001000000000
31201212210122101100
4220012021020000
52334202331010
6150430134400
722445563140
oct5006111000
91655718340
10672698880
113157a2697
12169351400
13a94a0999
14654ac920
153e0cd2c0
hex28189200

672698880 has 480 divisors, whose sum is σ = 2752573824. Its totient is φ = 148635648.

The previous prime is 672698863. The next prime is 672698941. The reversal of 672698880 is 88896276.

It is a tau number, because it is divible by the number of its divisors (480).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6934992 + ... + 6935088.

Almost surely, 2672698880 is an apocalyptic number.

672698880 is a gapful number since it is divisible by the number (60) 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 672698880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376286912).

672698880 is an abundant number, since it is smaller than the sum of its proper divisors (2079874944).

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

672698880 is a wasteful number, since it uses less digits than its factorization.

672698880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 672698880 is about 25936.4392313209. The cubic root of 672698880 is about 876.2073694345.

The spelling of 672698880 in words is "six hundred seventy-two million, six hundred ninety-eight thousand, eight hundred eighty".