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68436713171142 = 23226314456424413
BaseRepresentation
bin11111000111110001010011…
…11110100110100011000110
322222022111010012122121202200
433203320221332212203012
532432231342032434032
6401315220401215330
720262250356602241
oct1743705176464306
9288274105577680
1068436713171142
111a895935497598
1278135b0931546
132c25728c12c94
1412c84d6dd8258
157da2e159847c
hex3e3e29fa68c6

68436713171142 has 24 divisors (see below), whose sum is σ = 148843345766544. Its totient is φ = 22725499175664.

The previous prime is 68436713171111. The next prime is 68436713171161. The reversal of 68436713171142 is 24117131763486.

68436713171142 is a `hidden beast` number, since 6 + 8 + 4 + 367 + 131 + 7 + 1 + 142 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7228207473 + ... + 7228216940.

It is an arithmetic number, because the mean of its divisors is an integer number (6201806073606).

Almost surely, 268436713171142 is an apocalyptic number.

68436713171142 is an abundant number, since it is smaller than the sum of its proper divisors (80406632595402).

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

68436713171142 is a wasteful number, since it uses less digits than its factorization.

68436713171142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14456424684 (or 14456424681 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 68436713171142 in words is "sixty-eight trillion, four hundred thirty-six billion, seven hundred thirteen million, one hundred seventy-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 263 526 789 1578 2367 4734 14456424413 28912848826 43369273239 86738546478 130107819717 260215639434 3802039620619 7604079241238 11406118861857 22812237723714 34218356585571 68436713171142