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123313255230015 = 32528315121640369
BaseRepresentation
bin11100000010011100011010…
…110001100010101000111111
3121011121122001210000210100200
4130002130122301202220333
5112130331021314330030
61114133154415054543
734655042264025234
oct3402343261425077
9534548053023320
10123313255230015
1136322948897734
12119b6b27811453
1353a650bcb1236
1422645716b178b
15e3c9da0c3d60
hex70271ac62a3f

123313255230015 has 48 divisors (see below), whose sum is σ = 214512771701280. Its totient is φ = 65530240634880.

The previous prime is 123313255230013. The next prime is 123313255230029. The reversal of 123313255230015 is 510032552313321.

123313255230015 is a `hidden beast` number, since 1 + 2 + 3 + 31 + 32 + 552 + 30 + 0 + 15 = 666.

It is not a de Polignac number, because 123313255230015 - 21 = 123313255230013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123313255230013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192245751 + ... + 192886119.

It is an arithmetic number, because the mean of its divisors is an integer number (4469016077110).

Almost surely, 2123313255230015 is an apocalyptic number.

123313255230015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123313255230015 is a deficient number, since it is larger than the sum of its proper divisors (91199516471265).

123313255230015 is a wasteful number, since it uses less digits than its factorization.

123313255230015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655784 (or 655781 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 123313255230015 in words is "one hundred twenty-three trillion, three hundred thirteen billion, two hundred fifty-five million, two hundred thirty thousand, fifteen".

Divisors: 1 3 5 9 15 45 283 849 1415 2547 4245 12735 15121 45363 75605 136089 226815 640369 680445 1921107 3201845 4279243 5763321 9605535 12837729 21396215 28816605 38513187 64188645 181224427 192565935 543673281 906122135 1631019843 2718366405 8155099215 9683019649 29049058947 48415098245 87147176841 145245294735 435735884205 2740294560667 8220883682001 13701472803335 24662651046003 41104418410005 123313255230015