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68841042864141 = 3317701863119657
BaseRepresentation
bin11111010011100010011011…
…11001111110100000001101
3100000202010202122022011222110
433221301031321332200031
533010342423433123031
6402225045525534233
720333413134356022
oct1751611571764015
9300663678264873
1068841042864141
111aa31360018369
127879a31b74379
132c548b4568b32
1412ddcd2213549
157e5aa813dc46
hex3e9c4de7e80d

68841042864141 has 32 divisors (see below), whose sum is σ = 92316579683328. Its totient is φ = 45630672012800.

The previous prime is 68841042864107. The next prime is 68841042864157. The reversal of 68841042864141 is 14146824014886.

It is a cyclic number.

It is not a de Polignac number, because 68841042864141 - 227 = 68840908646413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68841046864141) 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, 575259985 + ... + 575379641.

It is an arithmetic number, because the mean of its divisors is an integer number (2884893115104).

Almost surely, 268841042864141 is an apocalyptic number.

It is an amenable number.

68841042864141 is a deficient number, since it is larger than the sum of its proper divisors (23475536819187).

68841042864141 is a wasteful number, since it uses less digits than its factorization.

68841042864141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121541.

The product of its (nonzero) digits is 9437184, while the sum is 57.

The spelling of 68841042864141 in words is "sixty-eight trillion, eight hundred forty-one billion, forty-two million, eight hundred sixty-four thousand, one hundred forty-one".

Divisors: 1 3 317 701 863 951 2103 2589 119657 222217 273571 358971 604963 666651 820713 1814889 37931269 83879557 103263991 113793807 191773271 251638671 309791973 575319813 26589819569 32734685147 72388057691 79769458707 98204055441 217164173073 22947014288047 68841042864141