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123152313 = 3167401613
BaseRepresentation
bin1110101011100…
…10011110111001
322120201210012210
413111302132321
5223011333223
620115325333
73023530434
oct725623671
9276653183
10123152313
1163575179
12352b0849
131c68b9bb
14124da81b
15ac29893
hex75727b9

123152313 has 16 divisors (see below), whose sum is σ = 165868416. Its totient is φ = 81273600.

The previous prime is 123152311. The next prime is 123152321. The reversal of 123152313 is 313251321.

It is not a de Polignac number, because 123152313 - 21 = 123152311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123152313.

It is not an unprimeable number, because it can be changed into a prime (123152311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200595 + ... + 201207.

It is an arithmetic number, because the mean of its divisors is an integer number (10366776).

Almost surely, 2123152313 is an apocalyptic number.

It is an amenable number.

123152313 is a deficient number, since it is larger than the sum of its proper divisors (42716103).

123152313 is a wasteful number, since it uses less digits than its factorization.

123152313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its digits is 540, while the sum is 21.

The square root of 123152313 is about 11097.4011822588. The cubic root of 123152313 is about 497.5241781807.

The spelling of 123152313 in words is "one hundred twenty-three million, one hundred fifty-two thousand, three hundred thirteen".

Divisors: 1 3 167 401 501 613 1203 1839 66967 102371 200901 245813 307113 737439 41050771 123152313