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681467708141 = 11176772077547
BaseRepresentation
bin10011110101010101010…
…01000000001011101101
32102010222122201102112222
421322222221000023231
542131121213130031
61241021214005125
7100143255642053
oct11725251001355
92363878642488
10681467708141
11243010834510
12b00a61a67a5
134c353b8937c
1424da9d181d3
1512ad7107e7b
hex9eaaa402ed

681467708141 has 32 divisors (see below), whose sum is σ = 799115092992. Its totient is φ = 574215586560.

The previous prime is 681467708113. The next prime is 681467708219. The reversal of 681467708141 is 141807764186.

It is a de Polignac number, because none of the positive numbers 2k-681467708141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681467708941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90292730 + ... + 90300276.

It is an arithmetic number, because the mean of its divisors is an integer number (24972346656).

Almost surely, 2681467708141 is an apocalyptic number.

It is an amenable number.

681467708141 is a deficient number, since it is larger than the sum of its proper divisors (117647384851).

681467708141 is a wasteful number, since it uses less digits than its factorization.

681467708141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14849.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 681467708141 in words is "six hundred eighty-one billion, four hundred sixty-seven million, seven hundred eight thousand, one hundred forty-one".

Divisors: 1 11 17 67 187 737 1139 7207 7547 12529 79277 83017 122519 128299 482869 505649 1347709 1411289 5311559 5562139 8208773 8596033 54391229 90296503 94556363 598303519 924650893 3644212343 10171159823 40086335773 61951609831 681467708141