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26969496312 = 23311312106303
BaseRepresentation
bin11001000111100000…
…011101101011111000
32120121112212100211210
4121013200131223320
5420213142340222
620220053523120
71643220636063
oct310740355370
976545770753
1026969496312
111048a639830
1252880434a0
13270a590555
14143bb818da
15a7ca5bd0c
hex64781daf8

26969496312 has 96 divisors (see below), whose sum is σ = 76003107840. Its totient is φ = 7908868800.

The previous prime is 26969496311. The next prime is 26969496349. The reversal of 26969496312 is 21369496962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26969496311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200553 + ... + 306855.

It is an arithmetic number, because the mean of its divisors is an integer number (791699040).

Almost surely, 226969496312 is an apocalyptic number.

26969496312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26969496312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38001553920).

26969496312 is an abundant number, since it is smaller than the sum of its proper divisors (49033611528).

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

26969496312 is a wasteful number, since it uses less digits than its factorization.

26969496312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106385 (or 106350 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 57.

The spelling of 26969496312 in words is "twenty-six billion, nine hundred sixty-nine million, four hundred ninety-six thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 22 24 31 33 44 62 66 88 93 124 132 186 248 264 341 372 682 744 961 1023 1364 1922 2046 2728 2883 3844 4092 5766 7688 8184 10571 11532 21142 23064 31713 42284 63426 84568 106303 126852 212606 253704 318909 425212 637818 850424 1169333 1275636 2338666 2551272 3295393 3507999 4677332 6590786 7015998 9354664 9886179 13181572 14031996 19772358 26363144 28063992 36249323 39544716 72498646 79089432 102157183 108747969 144997292 204314366 217495938 289994584 306471549 408628732 434991876 612943098 817257464 869983752 1123729013 1225886196 2247458026 2451772392 3371187039 4494916052 6742374078 8989832104 13484748156 26969496312