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672125623 = 13241214531
BaseRepresentation
bin101000000011111…
…101001010110111
31201211201112000121
4220003331022313
52334031004443
6150405552411
722440654631
oct5003751267
91654645017
10672125623
11315440a24
12169115707
13a932ca90
146539da51
153e0184ed
hex280fd2b7

672125623 has 8 divisors (see below), whose sum is σ = 726834416. Its totient is φ = 617846400.

The previous prime is 672125593. The next prime is 672125639. The reversal of 672125623 is 326521276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672125623 - 25 = 672125591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672125123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104133 + ... + 110398.

It is an arithmetic number, because the mean of its divisors is an integer number (90854302).

Almost surely, 2672125623 is an apocalyptic number.

672125623 is a deficient number, since it is larger than the sum of its proper divisors (54708793).

672125623 is a wasteful number, since it uses less digits than its factorization.

672125623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214785.

The product of its digits is 30240, while the sum is 34.

The square root of 672125623 is about 25925.3856866200. The cubic root of 672125623 is about 875.9584047686.

Adding to 672125623 its reverse (326521276), we get a palindrome (998646899).

The spelling of 672125623 in words is "six hundred seventy-two million, one hundred twenty-five thousand, six hundred twenty-three".

Divisors: 1 13 241 3133 214531 2788903 51701971 672125623