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672351901 = 13313767673
BaseRepresentation
bin101000000100110…
…100011010011101
31201212011000102021
4220010310122131
52334110230101
6150414500141
722442616424
oct5004643235
91655130367
10672351901
11315585a31
12169204651
13a93aba80
146541c2bb
153e0605a1
hex2813469d

672351901 has 32 divisors (see below), whose sum is σ = 780243968. Its totient is φ = 574801920.

The previous prime is 672351877. The next prime is 672351919. The reversal of 672351901 is 109153276.

It is a cyclic number.

It is not a de Polignac number, because 672351901 - 27 = 672351773 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 (672351961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 998701 + ... + 999373.

It is an arithmetic number, because the mean of its divisors is an integer number (24382624).

Almost surely, 2672351901 is an apocalyptic number.

It is an amenable number.

672351901 is a deficient number, since it is larger than the sum of its proper divisors (107892067).

672351901 is a wasteful number, since it uses less digits than its factorization.

672351901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 672351901 is about 25929.7493431772. The cubic root of 672351901 is about 876.0566938732.

The spelling of 672351901 in words is "six hundred seventy-two million, three hundred fifty-one thousand, nine hundred one".

Divisors: 1 13 31 37 67 403 481 673 871 1147 2077 2479 8749 14911 20863 24901 27001 32227 45091 76849 271219 323713 586183 771931 999037 1397821 1668367 10035103 18171673 21688771 51719377 672351901