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13155323442412 = 22171273174805401
BaseRepresentation
bin1011111101101111011001…
…1000010111010011101100
31201120122012002221221021211
42333123312120113103230
53211014100300124122
643551245553004204
72525304115154044
oct277336630272354
951518162857254
1013155323442412
114212161140a28
12158570b253664
137457070b14a8
14336a147d0724
1517c3007ac877
hexbf6f66174ec

13155323442412 has 48 divisors (see below), whose sum is σ = 24645484459008. Its totient is φ = 6122617804800.

The previous prime is 13155323442407. The next prime is 13155323442413. The reversal of 13155323442412 is 21424432355131.

It is not an unprimeable number, because it can be changed into a prime (13155323442413) 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, 334912 + ... + 5140312.

It is an arithmetic number, because the mean of its divisors is an integer number (513447592896).

Almost surely, 213155323442412 is an apocalyptic number.

It is an amenable number.

13155323442412 is a deficient number, since it is larger than the sum of its proper divisors (11490161016596).

13155323442412 is a wasteful number, since it uses less digits than its factorization.

13155323442412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4805866 (or 4805864 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

Adding to 13155323442412 its reverse (21424432355131), we get a palindrome (34579755797543).

The spelling of 13155323442412 in words is "thirteen trillion, one hundred fifty-five billion, three hundred twenty-three million, four hundred forty-two thousand, four hundred twelve".

Divisors: 1 2 4 17 34 68 127 254 317 508 634 1268 2159 4318 5389 8636 10778 21556 40259 80518 161036 684403 1368806 2737612 4805401 9610802 19221604 81691817 163383634 326767268 610285927 1220571854 1523312117 2441143708 3046624234 6093248468 10374860759 20749721518 25896305989 41499443036 51792611978 103585223956 193460638859 386921277718 773842555436 3288830860603 6577661721206 13155323442412