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672065427 = 31164731477
BaseRepresentation
bin101000000011101…
…110011110010011
31201211121110110010
4220003232132103
52334022043202
6150404410003
722440314265
oct5003563623
91654543403
10672065427
113153aa780
121690a6903
13a930b567
1465385b35
153e00576c
hex280ee793

672065427 has 16 divisors (see below), whose sum is σ = 979091712. Its totient is φ = 406669920.

The previous prime is 672065423. The next prime is 672065431. The reversal of 672065427 is 724560276.

It is a happy number.

672065427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (672065423) and next prime (672065431).

It is not a de Polignac number, because 672065427 - 22 = 672065423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672065423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5613 + ... + 37089.

It is an arithmetic number, because the mean of its divisors is an integer number (61193232).

Almost surely, 2672065427 is an apocalyptic number.

672065427 is a deficient number, since it is larger than the sum of its proper divisors (307026285).

672065427 is a wasteful number, since it uses less digits than its factorization.

672065427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32138.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 672065427 is about 25924.2247135763. The cubic root of 672065427 is about 875.9322535232.

The spelling of 672065427 in words is "six hundred seventy-two million, sixty-five thousand, four hundred twenty-seven".

Divisors: 1 3 11 33 647 1941 7117 21351 31477 94431 346247 1038741 20365619 61096857 224021809 672065427