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13320912331 = 191223573263
BaseRepresentation
bin11000110011111110…
…01111110111001011
31021101100122110102101
430121333033313023
5204240123143311
610041453214231
7651050613046
oct143177176713
937340573371
1013320912331
115716342661
1226b9191377
131343a1225c
14905223c5d
1552e6e1ec1
hex319fcfdcb

13320912331 has 8 divisors (see below), whose sum is σ = 14033502720. Its totient is φ = 12609470952.

The previous prime is 13320912299. The next prime is 13320912373. The reversal of 13320912331 is 13321902331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13320912331 - 25 = 13320912299 is a prime.

It is a super-2 number, since 2×133209123312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13320912331.

It is not an unprimeable number, because it can be changed into a prime (13320922331) 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 7 ways as a sum of consecutive naturals, for example, 263395 + ... + 309868.

It is an arithmetic number, because the mean of its divisors is an integer number (1754187840).

Almost surely, 213320912331 is an apocalyptic number.

13320912331 is a deficient number, since it is larger than the sum of its proper divisors (712590389).

13320912331 is a wasteful number, since it uses less digits than its factorization.

13320912331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574505.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 13320912331 in words is "thirteen billion, three hundred twenty million, nine hundred twelve thousand, three hundred thirty-one".

Divisors: 1 19 1223 23237 573263 10891997 701100649 13320912331