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123486713 = 7224110457
BaseRepresentation
bin1110101110001…
…00000111111001
322121100202220222
413113010013321
5223103033323
620130425425
73026422400
oct727040771
9277322828
10123486713
1163783439
1235432275
131c777c7c
1412586637
15ac939c8
hex75c41f9

123486713 has 12 divisors (see below), whose sum is σ = 144257652. Its totient is φ = 105396480.

The previous prime is 123486697. The next prime is 123486721. The reversal of 123486713 is 317684321.

It can be written as a sum of positive squares in 2 ways, for example, as 103164649 + 20322064 = 10157^2 + 4508^2 .

It is not a de Polignac number, because 123486713 - 24 = 123486697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123486763) 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, 6581 + ... + 17037.

It is an arithmetic number, because the mean of its divisors is an integer number (12021471).

Almost surely, 2123486713 is an apocalyptic number.

It is an amenable number.

123486713 is a deficient number, since it is larger than the sum of its proper divisors (20770939).

123486713 is a wasteful number, since it uses less digits than its factorization.

123486713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10712 (or 10705 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 123486713 is about 11112.4575589741. The cubic root of 123486713 is about 497.9740864351.

The spelling of 123486713 in words is "one hundred twenty-three million, four hundred eighty-six thousand, seven hundred thirteen".

Divisors: 1 7 49 241 1687 10457 11809 73199 512393 2520137 17640959 123486713