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68270447682 = 23223347475229
BaseRepresentation
bin111111100101001111…
…000101110001000010
320112012212220002010100
4333211033011301002
52104304213311212
651210224343230
74634543142033
oct774517056102
9215185802110
1068270447682
1126a53984898
1211293774b16
136590021b08
14343903aa8a
151b98870bdc
hexfe53c5c42

68270447682 has 48 divisors (see below), whose sum is σ = 154795717440. Its totient is φ = 21704613216.

The previous prime is 68270447633. The next prime is 68270447719. The reversal of 68270447682 is 28674407286.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93957 + ... + 381272.

It is an arithmetic number, because the mean of its divisors is an integer number (3224910780).

Almost surely, 268270447682 is an apocalyptic number.

68270447682 is an abundant number, since it is smaller than the sum of its proper divisors (86525269758).

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

68270447682 is a wasteful number, since it uses less digits than its factorization.

68270447682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475607 (or 475604 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 68270447682 in words is "sixty-eight billion, two hundred seventy million, four hundred forty-seven thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 347 414 694 1041 2082 3123 6246 7981 15962 23943 47886 71829 143658 475229 950458 1425687 2851374 4277061 8554122 10930267 21860534 32790801 65581602 98372403 164904463 196744806 329808926 494713389 989426778 1484140167 2968280334 3792802649 7585605298 11378407947 22756815894 34135223841 68270447682