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68760218546 = 21731738771019
BaseRepresentation
bin100000000001001101…
…1011010101110110010
320120111000111000102222
41000002123122232302
52111310103443141
651331002041042
74652641133315
oct1000233325662
9216430430388
1068760218546
11271853949a8
12113ab7a9182
13663a634c66
1434840cc97c
151bc686814b
hex10026dabb2

68760218546 has 64 divisors (see below), whose sum is σ = 114517048320. Its totient is φ = 30819502080.

The previous prime is 68760218539. The next prime is 68760218557. The reversal of 68760218546 is 64581206786.

It is a happy 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, 67477625 + ... + 67478643.

It is an arithmetic number, because the mean of its divisors is an integer number (1789328880).

Almost surely, 268760218546 is an apocalyptic number.

68760218546 is a deficient number, since it is larger than the sum of its proper divisors (45756829774).

68760218546 is a wasteful number, since it uses less digits than its factorization.

68760218546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 68760218546 in words is "sixty-eight billion, seven hundred sixty million, two hundred eighteen thousand, five hundred forty-six".

Divisors: 1 2 17 31 34 62 73 146 527 877 1019 1054 1241 1754 2038 2263 2482 4526 14909 17323 27187 29818 31589 34646 38471 54374 63178 64021 74387 76942 128042 148774 462179 537013 893663 924358 1074026 1088357 1264579 1787326 1984651 2176714 2305997 2529158 3969302 4611994 15192271 27703553 30384542 33739067 39201949 55407106 65237399 67478134 78403898 130474798 470960401 941920802 1109035783 2022359369 2218071566 4044718738 34380109273 68760218546