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30983169 = 375772557
BaseRepresentation
bin111011000110…
…0010000000001
32011022002220210
41312030100001
530412430134
63024024333
7524231640
oct166142001
964262823
1030983169
1116542128
12a4620a9
13655a649
144187357
152ac02e9
hex1d8c401

30983169 has 16 divisors (see below), whose sum is σ = 47312768. Its totient is φ = 17667072.

The previous prime is 30983143. The next prime is 30983207. The reversal of 30983169 is 96138903.

It is not a de Polignac number, because 30983169 - 29 = 30982657 is a prime.

It is a super-2 number, since 2×309831692 = 1919913522565122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30983119) 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, 10839 + ... + 13395.

It is an arithmetic number, because the mean of its divisors is an integer number (2957048).

Almost surely, 230983169 is an apocalyptic number.

It is an amenable number.

30983169 is a deficient number, since it is larger than the sum of its proper divisors (16329599).

30983169 is a wasteful number, since it uses less digits than its factorization.

30983169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 30983169 is about 5566.2526891976. The cubic root of 30983169 is about 314.0812027129.

The spelling of 30983169 in words is "thirty million, nine hundred eighty-three thousand, one hundred sixty-nine".

Divisors: 1 3 7 21 577 1731 2557 4039 7671 12117 17899 53697 1475389 4426167 10327723 30983169