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68731634859822 = 232111142330388643
BaseRepresentation
bin11111010000010110101001…
…01011100011111100101110
3100000100200100210211201000100
433220023110223203330232
533002044342011003242
6402102513244411530
720322460661566344
oct1750132453437456
9300320323751010
1068731634859822
111a999a17059390
127860799546ba6
132c474998c443c
1412d88b38d1994
157e2d02ed254c
hex3e82d4ae3f2e

68731634859822 has 48 divisors (see below), whose sum is σ = 162470818718208. Its totient is φ = 20825944135440.

The previous prime is 68731634859799. The next prime is 68731634859827. The reversal of 68731634859822 is 22895843613786.

68731634859822 is a `hidden beast` number, since 6 + 8 + 7 + 3 + 1 + 6 + 3 + 4 + 8 + 598 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68731634859827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12932568 + ... + 17456075.

It is an arithmetic number, because the mean of its divisors is an integer number (3384808723296).

Almost surely, 268731634859822 is an apocalyptic number.

68731634859822 is an abundant number, since it is smaller than the sum of its proper divisors (93739183858386).

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

68731634859822 is a wasteful number, since it uses less digits than its factorization.

68731634859822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30400085 (or 30400082 counting only the distinct ones).

The product of its digits is 836075520, while the sum is 72.

The spelling of 68731634859822 in words is "sixty-eight trillion, seven hundred thirty-one billion, six hundred thirty-four million, eight hundred fifty-nine thousand, eight hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 11423 22846 34269 68538 102807 125653 205614 251306 376959 753918 1130877 2261754 30388643 60777286 91165929 182331858 273497787 334275073 546995574 668550146 1002825219 2005650438 3008475657 6016951314 347129468989 694258937978 1041388406967 2082776813934 3124165220901 3818424158879 6248330441802 7636848317758 11455272476637 22910544953274 34365817429911 68731634859822