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71968262154 = 2338930834731
BaseRepresentation
bin100001100000110100…
…1001000100000001010
320212202120222111221220
41003001221020200022
52134342333342104
653021201342510
75125304064165
oct1030151104012
9225676874856
1071968262154
1128581231608
1211b46037a36
136a2c15ba09
1436aa1acadc
151d133047d9
hex10c1a4880a

71968262154 has 16 divisors (see below), whose sum is σ = 144306545760. Its totient is φ = 23927750480.

The previous prime is 71968262143. The next prime is 71968262207. The reversal of 71968262154 is 45126286917.

It is a junction number, because it is equal to n+sod(n) for n = 71968262097 and 71968262106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15415032 + ... + 15419699.

It is an arithmetic number, because the mean of its divisors is an integer number (9019159110).

Almost surely, 271968262154 is an apocalyptic number.

71968262154 is an abundant number, since it is smaller than the sum of its proper divisors (72338283606).

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

71968262154 is a wasteful number, since it uses less digits than its factorization.

71968262154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30835125.

The product of its digits is 1451520, while the sum is 51.

The spelling of 71968262154 in words is "seventy-one billion, nine hundred sixty-eight million, two hundred sixty-two thousand, one hundred fifty-four".

Divisors: 1 2 3 6 389 778 1167 2334 30834731 61669462 92504193 185008386 11994710359 23989420718 35984131077 71968262154