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23031313152312 = 2335871634817799
BaseRepresentation
bin1010011110010011001010…
…01111010011100100111000
310000112202211210221201210210
411033021211033103210320
511004321112131333222
6120552234511111120
74564646260464153
oct517114517234470
9100482753851723
1023031313152312
11737a585938593
1226bb7582124a0
13cb0ac726a31a
14598a15b44c9a
1529e16d640d0c
hex14f2653d3938

23031313152312 has 32 divisors (see below), whose sum is σ = 57676371984000. Its totient is φ = 7664025837024.

The previous prime is 23031313152299. The next prime is 23031313152343. The reversal of 23031313152312 is 21325131313032.

It is a happy number.

It is a super-3 number, since 3×230313131523123 (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23031313152312.

It is a congruent number.

It is an unprimeable number.

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, 817394812 + ... + 817422987.

It is an arithmetic number, because the mean of its divisors is an integer number (1802386624500).

Almost surely, 223031313152312 is an apocalyptic number.

It is an amenable number.

23031313152312 is an abundant number, since it is smaller than the sum of its proper divisors (34645058831688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23031313152312 is a wasteful number, since it uses less digits than its factorization.

23031313152312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634818395 (or 1634818391 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 23031313152312 its reverse (21325131313032), we get a palindrome (44356444465344).

The spelling of 23031313152312 in words is "twenty-three trillion, thirty-one billion, three hundred thirteen million, one hundred fifty-two thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 587 1174 1761 2348 3522 4696 7044 14088 1634817799 3269635598 4904453397 6539271196 9808906794 13078542392 19617813588 39235627176 959638048013 1919276096026 2878914144039 3838552192052 5757828288078 7677104384104 11515656576156 23031313152312