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68270605812 = 22336047104537
BaseRepresentation
bin111111100101001111…
…101100010111110100
320112012220012010001000
4333211033230113310
52104304233341222
651210232003300
74634544401043
oct774517542764
9215186163030
1068270605812
1126a53a82682
1211293830530
136590078a96
14343907c55a
151b988a29ac
hexfe53ec5f4

68270605812 has 48 divisors (see below), whose sum is σ = 177028830720. Its totient is φ = 22752887616.

The previous prime is 68270605787. The next prime is 68270605831. The reversal of 68270605812 is 21850607286.

68270605812 is a `hidden beast` number, since 6 + 8 + 2 + 7 + 0 + 60 + 581 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 600808 + ... + 705344.

It is an arithmetic number, because the mean of its divisors is an integer number (3688100640).

Almost surely, 268270605812 is an apocalyptic number.

It is an amenable number.

68270605812 is an abundant number, since it is smaller than the sum of its proper divisors (108758224908).

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

68270605812 is a wasteful number, since it uses less digits than its factorization.

68270605812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110597 (or 110589 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 68270605812 in words is "sixty-eight billion, two hundred seventy million, six hundred five thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 6047 12094 18141 24188 36282 54423 72564 104537 108846 163269 209074 217692 313611 326538 418148 627222 653076 940833 1254444 1881666 2822499 3763332 5644998 11289996 632135239 1264270478 1896405717 2528540956 3792811434 5689217151 7585622868 11378434302 17067651453 22756868604 34135302906 68270605812