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670381899264 = 29357111929127
BaseRepresentation
bin10011100000101011101…
…11111111111000000000
32101002101001210222200000
421300111313333320000
541440420231234024
61231545202400000
766301455060420
oct11602567777000
92332331728600
10670381899264
112393421181a0
12a9b11660000
134b2a824964c
14246378ac480
1512688c68cc9
hex9c15dffe00

670381899264 has 1920 divisors, whose sum is σ = 2745424281600. Its totient is φ = 158018273280.

The previous prime is 670381899241. The next prime is 670381899269. The reversal of 670381899264 is 462998183076.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670381899269) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5278597569 + ... + 5278597695.

It is an arithmetic number, because the mean of its divisors is an integer number (1429908480).

Almost surely, 2670381899264 is an apocalyptic number.

670381899264 is a gapful number since it is divisible by the number (64) 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 670381899264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372712140800).

670381899264 is an abundant number, since it is smaller than the sum of its proper divisors (2075042382336).

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

670381899264 is a wasteful number, since it uses less digits than its factorization.

670381899264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 670381899264 in words is "six hundred seventy billion, three hundred eighty-one million, eight hundred ninety-nine thousand, two hundred sixty-four".