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69231013 = 591173407
BaseRepresentation
bin1000010000001…
…10000110100101
311211021022002121
410020012012211
5120210343023
610511505541
71500311455
oct410060645
9154238077
1069231013
1136096315
121b2282b1
131145c7c7
1492a1d65
156127d5d
hex42061a5

69231013 has 4 divisors (see below), whose sum is σ = 70404480. Its totient is φ = 68057548.

The previous prime is 69230981. The next prime is 69231017. The reversal of 69231013 is 31013296.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69231013 - 25 = 69230981 is a prime.

It is a super-2 number, since 2×692310132 = 9585866322012338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69231017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586645 + ... + 586762.

It is an arithmetic number, because the mean of its divisors is an integer number (17601120).

Almost surely, 269231013 is an apocalyptic number.

It is an amenable number.

69231013 is a deficient number, since it is larger than the sum of its proper divisors (1173467).

69231013 is a wasteful number, since it uses less digits than its factorization.

69231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173466.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 69231013 is about 8320.5175920732. The cubic root of 69231013 is about 410.6138198211.

The spelling of 69231013 in words is "sixty-nine million, two hundred thirty-one thousand, thirteen".

Divisors: 1 59 1173407 69231013