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675424431 = 321124128309
BaseRepresentation
bin101000010000100…
…010100010101111
31202001221010010200
4220100202202233
52340402040211
6151004404543
722511004303
oct5020424257
91661833120
10675424431
11317294410
1216a246753
13a9c16436
14659bbd03
153e46ab56
hex284228af

675424431 has 24 divisors (see below), whose sum is σ = 1068759120. Its totient is φ = 407635200.

The previous prime is 675424363. The next prime is 675424441. The reversal of 675424431 is 134424576.

It is not a de Polignac number, because 675424431 - 27 = 675424303 is a prime.

It is a super-2 number, since 2×6754244312 = 912396323983347522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675424441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9705 + ... + 38013.

It is an arithmetic number, because the mean of its divisors is an integer number (44531630).

Almost surely, 2675424431 is an apocalyptic number.

675424431 is a deficient number, since it is larger than the sum of its proper divisors (393334689).

675424431 is a wasteful number, since it uses less digits than its factorization.

675424431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28567 (or 28564 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 675424431 is about 25988.9290083297. The cubic root of 675424431 is about 877.3891412781.

The spelling of 675424431 in words is "six hundred seventy-five million, four hundred twenty-four thousand, four hundred thirty-one".

Divisors: 1 3 9 11 33 99 241 723 2169 2651 7953 23859 28309 84927 254781 311399 934197 2802591 6822469 20467407 61402221 75047159 225141477 675424431