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672706944000 = 21034537132331
BaseRepresentation
bin10011100101000000111…
…01010101110000000000
32101022101002210111110000
421302200131111300000
542010200434202000
61233012020240000
766413206451460
oct11624035256000
92338332714400
10672706944000
1123a325594773
12aa460240000
134b588b50170
14247b85b9ba0
1512772e36000
hex9ca0755c00

672706944000 has 3520 divisors, whose sum is σ = 3323587018752. Its totient is φ = 131383296000.

The previous prime is 672706943981. The next prime is 672706944043. The reversal of 672706944000 is 449607276.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 21700223985 + ... + 21700224015.

Almost surely, 2672706944000 is an apocalyptic number.

672706944000 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 672706944000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1661793509376).

672706944000 is an abundant number, since it is smaller than the sum of its proper divisors (2650880074752).

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

672706944000 is a wasteful number, since it uses less digits than its factorization.

672706944000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 672706944000 in words is "six hundred seventy-two billion, seven hundred six million, nine hundred forty-four thousand".