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69041931 = 372469673
BaseRepresentation
bin1000001110101…
…11111100001011
311210220200201120
410013113330023
5120133320211
610503450323
71465563300
oct407277413
9153820646
1069041931
1135a77252
121b1569a3
13113c471a
1492530a7
1560dbd06
hex41d7f0b

69041931 has 12 divisors (see below), whose sum is σ = 107085672. Its totient is φ = 39452448.

The previous prime is 69041923. The next prime is 69041933. The reversal of 69041931 is 13914096.

69041931 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 69041931 - 23 = 69041923 is a prime.

It is a super-2 number, since 2×690419312 = 9533576472417522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 69041892 and 69041901.

It is not an unprimeable number, because it can be changed into a prime (69041933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234690 + ... + 234983.

It is an arithmetic number, because the mean of its divisors is an integer number (8923806).

Almost surely, 269041931 is an apocalyptic number.

69041931 is a deficient number, since it is larger than the sum of its proper divisors (38043741).

69041931 is a wasteful number, since it uses less digits than its factorization.

69041931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469690 (or 469683 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 69041931 is about 8309.1474291891. The cubic root of 69041931 is about 410.2396596055.

The spelling of 69041931 in words is "sixty-nine million, forty-one thousand, nine hundred thirty-one".

Divisors: 1 3 7 21 49 147 469673 1409019 3287711 9863133 23013977 69041931