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12386521032031 = 238310193636563
BaseRepresentation
bin1011010000111111011000…
…1011111010010101011111
31121212010202221120221210101
42310033312023322111133
53110420043341011111
642202142245121531
72415616352406556
oct264176613722537
947763687527711
1012386521032031
113a46104230053
1214807109b92a7
136bb075659223
1430b721976d9d
15167306305bc1
hexb43f62fa55f

12386521032031 has 16 divisors (see below), whose sum is σ = 13082092966656. Its totient is φ = 11704063186816.

The previous prime is 12386521031957. The next prime is 12386521032047. The reversal of 12386521032031 is 13023012568321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12386521032031 - 219 = 12386520507743 is a prime.

It is a super-3 number, since 3×123865210320313 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12386521072031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19140156 + ... + 19776718.

It is an arithmetic number, because the mean of its divisors is an integer number (817630810416).

Almost surely, 212386521032031 is an apocalyptic number.

12386521032031 is a deficient number, since it is larger than the sum of its proper divisors (695571934625).

12386521032031 is a wasteful number, since it uses less digits than its factorization.

12386521032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646862.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 12386521032031 in words is "twelve trillion, three hundred eighty-six billion, five hundred twenty-one million, thirty-two thousand, thirty-one".

Divisors: 1 23 83 1909 10193 234439 636563 846019 14640949 19458437 52834729 1215198767 6488486659 149235193157 538544392697 12386521032031