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672625741824 = 212313103
BaseRepresentation
bin10011100100110111001…
…11100101000000000000
32101022011110000000000000
421302123213211000000
542010014142214244
61233000000000000
766411202320441
oct11623347450000
92338143000000
10672625741824
1123a293772333
12aa439000000
134b57508b83a
14247ab8bd2c8
151276ac46169
hex9c9b9e5000

672625741824 has 364 divisors, whose sum is σ = 2037219126176. Its totient is φ = 222031798272.

The previous prime is 672625741793. The next prime is 672625741829. The reversal of 672625741824 is 428147526276.

672625741824 is a `hidden beast` number, since 6 + 7 + 2 + 62 + 574 + 1 + 8 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672625741829) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 6530346957 + ... + 6530347059.

Almost surely, 2672625741824 is an apocalyptic number.

672625741824 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 672625741824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018609563088).

672625741824 is an abundant number, since it is smaller than the sum of its proper divisors (1364593384352).

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

672625741824 is an frugal number, since it uses more digits than its factorization.

672625741824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 108 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 672625741824 in words is "six hundred seventy-two billion, six hundred twenty-five million, seven hundred forty-one thousand, eight hundred twenty-four".