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69715412 = 22131340681
BaseRepresentation
bin1000010011111…
…00010111010100
311212011220120022
410021330113110
5120321343122
610530124312
71504366634
oct411742724
9155156508
1069715412
1136397248
121b420698
131159c130
14938a6c4
1561c1642
hex427c5d4

69715412 has 12 divisors (see below), whose sum is σ = 131386836. Its totient is φ = 32176320.

The previous prime is 69715411. The next prime is 69715417. The reversal of 69715412 is 21451796.

It can be written as a sum of positive squares in 2 ways, for example, as 17673616 + 52041796 = 4204^2 + 7214^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69715411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670289 + ... + 670392.

It is an arithmetic number, because the mean of its divisors is an integer number (10948903).

Almost surely, 269715412 is an apocalyptic number.

It is an amenable number.

69715412 is a deficient number, since it is larger than the sum of its proper divisors (61671424).

69715412 is a wasteful number, since it uses less digits than its factorization.

69715412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340698 (or 1340696 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 69715412 is about 8349.5755580748. The cubic root of 69715412 is about 411.5692626525.

The spelling of 69715412 in words is "sixty-nine million, seven hundred fifteen thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 1340681 2681362 5362724 17428853 34857706 69715412