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68220555502286 = 21183809244118919
BaseRepresentation
bin11111000001011110101011…
…11110100010001011001110
322221112211011210212022110102
433200233111332202023032
532420211144202033121
6401032031320211102
720240525650665035
oct1740572576421316
9287484153768412
1068220555502286
111a8121a2090660
127799726009a92
132c0b22b285205
1412bbc6d06171c
157d488e88690b
hex3e0bd5fa22ce

68220555502286 has 64 divisors (see below), whose sum is σ = 113170594521600. Its totient is φ = 30583716595200.

The previous prime is 68220555502279. The next prime is 68220555502303.

68220555502286 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3605918735 + ... + 3605937653.

It is an arithmetic number, because the mean of its divisors is an integer number (1768290539400).

Almost surely, 268220555502286 is an apocalyptic number.

68220555502286 is a deficient number, since it is larger than the sum of its proper divisors (44950039019314).

68220555502286 is a wasteful number, since it uses less digits than its factorization.

68220555502286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22265.

The product of its (nonzero) digits is 23040000, while the sum is 56.

The spelling of 68220555502286 in words is "sixty-eight trillion, two hundred twenty billion, five hundred fifty-five million, five hundred two thousand, two hundred eighty-six".

Divisors: 1 2 11 22 83 166 809 913 1618 1826 2441 4882 8899 17798 18919 26851 37838 53702 67147 134294 202603 208109 405206 416218 738617 1477234 1570277 1974769 2228633 3140554 3949538 4457266 15305471 17273047 21722459 30610942 34546094 43444918 46181279 92362558 163905827 168360181 327811654 336720362 507994069 1015988138 1270354093 1802964097 2540708186 3605928194 3833046157 7666092314 13973895023 27947790046 37360654711 42163507727 74721309422 84327015454 410967201821 821934403642 3100934341013 6201868682026 34110277751143 68220555502286