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68936071307444 = 221123312698168683
BaseRepresentation
bin11111010110010011011100…
…00010101110000010110100
3100001002020001100002021112122
433223021232002232002310
533013422033223314234
6402340443255135112
720343316052663105
oct1753115602560264
9301066040067478
1068936071307444
111aa68695103320
127894332974498
132c6084a098243
141304748c983ac
157e82bab8e92e
hex3eb26e0ae0b4

68936071307444 has 96 divisors (see below), whose sum is σ = 142284098396160. Its totient is φ = 28897529443200.

The previous prime is 68936071307407. The next prime is 68936071307449. The reversal of 68936071307444 is 44470317063986.

68936071307444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68936071307449) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4354727 + ... + 12523409.

It is an arithmetic number, because the mean of its divisors is an integer number (1482126024960).

Almost surely, 268936071307444 is an apocalyptic number.

It is an amenable number.

68936071307444 is an abundant number, since it is smaller than the sum of its proper divisors (73348027088716).

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

68936071307444 is a wasteful number, since it uses less digits than its factorization.

68936071307444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8169021 (or 8169019 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 62.

The spelling of 68936071307444 in words is "sixty-eight trillion, nine hundred thirty-six billion, seventy-one million, three hundred seven thousand, four hundred forty-four".

Divisors: 1 2 4 11 22 23 31 44 46 62 92 124 253 269 341 506 538 682 713 1012 1076 1364 1426 2852 2959 5918 6187 7843 8339 11836 12374 15686 16678 24748 31372 33356 68057 91729 136114 183458 191797 272228 366916 383594 767188 2109767 4219534 8168683 8439068 16337366 32674732 89855513 179711026 187879709 253229173 359422052 375759418 506458346 751518836 1012916692 2066676799 2197375727 2785520903 4133353598 4394751454 5571041806 5824270979 8266707196 8789502908 11142083612 11648541958 23297083916 24171132997 48342265994 50539641721 64066980769 68118647537 96684531988 101079283442 128133961538 136237295074 202158566884 256267923076 272474590148 555936058931 749305122907 1111872117862 1498610245814 1566728893351 2223744235724 2997220491628 3133457786702 6266915573404 17234017826861 34468035653722 68936071307444