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704161031 = 72371229269
BaseRepresentation
bin101001111110001…
…010010100000111
31211002000002100012
4221332022110013
52420231123111
6153512340435
723310161420
oct5176122407
91732002305
10704161031
11331531672
121779a471b
13b2b68342
146973c647
1541c4548b
hex29f8a507

704161031 has 32 divisors (see below), whose sum is σ = 858470400. Its totient is φ = 564600960.

The previous prime is 704160997. The next prime is 704161043. The reversal of 704161031 is 130161407.

704161031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 704161031 - 26 = 704160967 is a prime.

It is a super-2 number, since 2×7041610312 = 991685515157965922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 704160988 and 704161006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704161061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2617565 + ... + 2617833.

It is an arithmetic number, because the mean of its divisors is an integer number (26827200).

Almost surely, 2704161031 is an apocalyptic number.

704161031 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

704161031 is a deficient number, since it is larger than the sum of its proper divisors (154309369).

704161031 is a wasteful number, since it uses less digits than its factorization.

704161031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 704161031 is about 26536.0326914179. The cubic root of 704161031 is about 889.6598586587.

The spelling of 704161031 in words is "seven hundred four million, one hundred sixty-one thousand, thirty-one".

Divisors: 1 7 23 71 161 229 269 497 1603 1633 1883 5267 6187 11431 16259 19099 36869 43309 61601 113813 133693 373957 431207 439277 1416823 2617699 3074939 4373671 9917761 30615697 100594433 704161031