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672203520 = 28325234359
BaseRepresentation
bin101000000100010…
…000001100000000
31201211212110212200
4220010100030000
52334041003040
6150411353200
722441431012
oct5004201400
91654773780
10672203520
113154944aa
12169152800
13a9359381
14653c01b2
153e031630
hex28110300

672203520 has 432 divisors, whose sum is σ = 2525402880. Its totient is φ = 164634624.

The previous prime is 672203509. The next prime is 672203549. The reversal of 672203520 is 25302276.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11393251 + ... + 11393309.

It is an arithmetic number, because the mean of its divisors is an integer number (5845840).

Almost surely, 2672203520 is an apocalyptic number.

672203520 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 672203520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262701440).

672203520 is an abundant number, since it is smaller than the sum of its proper divisors (1853199360).

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

672203520 is a wasteful number, since it uses less digits than its factorization.

672203520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 672203520 is about 25926.8879736848. The cubic root of 672203520 is about 875.9922436293.

Adding to 672203520 its reverse (25302276), we get a palindrome (697505796).

The spelling of 672203520 in words is "six hundred seventy-two million, two hundred three thousand, five hundred twenty".