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68027816562 = 231929186111057
BaseRepresentation
bin111111010110110001…
…100001101001110010
320111120222100010210120
4333112301201221302
52103310110112222
651130200111110
74625535620466
oct772661415162
9214528303716
1068027816562
1126939a24502
1211226465496
13655198c4c4
143414b1c4a6
151b823e515c
hexfd6c61a72

68027816562 has 64 divisors (see below), whose sum is σ = 148247971200. Its totient is φ = 20728673280.

The previous prime is 68027816551. The next prime is 68027816567. The reversal of 68027816562 is 26561872086.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68027816567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6146938 + ... + 6157994.

It is an arithmetic number, because the mean of its divisors is an integer number (2316374550).

Almost surely, 268027816562 is an apocalyptic number.

68027816562 is an abundant number, since it is smaller than the sum of its proper divisors (80220154638).

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

68027816562 is a wasteful number, since it uses less digits than its factorization.

68027816562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12971.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 68027816562 in words is "sixty-eight billion, twenty-seven million, eight hundred sixteen thousand, five hundred sixty-two".

Divisors: 1 2 3 6 19 29 38 57 58 87 114 174 551 1102 1653 1861 3306 3722 5583 11057 11166 22114 33171 35359 53969 66342 70718 106077 107938 161907 210083 212154 320653 323814 420166 630249 641306 961959 1025411 1260498 1923918 2050822 3076233 6092407 6152466 12184814 18277221 20577077 36554442 41154154 61731231 123462462 390964463 596735233 781928926 1172893389 1193470466 1790205699 2345786778 3580411398 11337969427 22675938854 34013908281 68027816562