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68297483826 = 233111343920147
BaseRepresentation
bin111111100110110110…
…001110011000110010
320112021202202122202000
4333212312032120302
52104333123440301
651213032034430
74635322014435
oct774666163062
9215252678660
1068297483826
1126a68170510
12112a0832a16
1365957c9a30
14343c87781c
151b9ae11786
hexfe6d8e632

68297483826 has 128 divisors (see below), whose sum is σ = 178720819200. Its totient is φ = 19059727680.

The previous prime is 68297483819. The next prime is 68297483827. The reversal of 68297483826 is 62838479286.

68297483826 is a `hidden beast` number, since 68 + 2 + 97 + 483 + 8 + 2 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (68297483827) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3379885 + ... + 3400031.

It is an arithmetic number, because the mean of its divisors is an integer number (1396256400).

Almost surely, 268297483826 is an apocalyptic number.

68297483826 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68297483826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89360409600).

68297483826 is an abundant number, since it is smaller than the sum of its proper divisors (110423335374).

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

68297483826 is a wasteful number, since it uses less digits than its factorization.

68297483826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20621 (or 20615 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 68297483826 in words is "sixty-eight billion, two hundred ninety-seven million, four hundred eighty-three thousand, eight hundred twenty-six".

Divisors: 1 2 3 6 9 11 13 18 22 26 27 33 39 54 66 78 99 117 143 198 234 286 297 351 429 439 594 702 858 878 1287 1317 2574 2634 3861 3951 4829 5707 7722 7902 9658 11414 11853 14487 17121 20147 23706 28974 34242 40294 43461 51363 60441 62777 86922 102726 120882 125554 130383 154089 181323 188331 221617 260766 261911 308178 362646 376662 443234 523822 543969 564993 664851 785733 1087938 1129986 1329702 1571466 1694979 1994553 2357199 2881021 3389958 3989106 4714398 5762042 5983659 7071597 8643063 8844533 11967318 14143194 17286126 17689066 25929189 26533599 51858378 53067198 77787567 79600797 97289863 114978929 155575134 159201594 194579726 229957858 238802391 291869589 344936787 477604782 583739178 689873574 875608767 1034810361 1264768219 1751217534 2069620722 2529536438 2626826301 3104431083 3794304657 5253652602 6208862166 7588609314 11382913971 22765827942 34148741913 68297483826