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168114630743785 = 5112172961506653
BaseRepresentation
bin100110001110011000111100…
…110110001101011011101001
3211001020121020200001120202101
4212032120330312031123221
5134013342230432300120
61353314443431533401
750260611161430355
oct4616307466153351
9731217220046671
10168114630743785
1149626018351a00
1216a318a982a261
1372a61ac2a815b
142d72b11dcc465
1514680a9be790a
hex98e63cd8d6e9

168114630743785 has 36 divisors (see below), whose sum is σ = 235555669136844. Its totient is φ = 115073116111360.

The previous prime is 168114630743783. The next prime is 168114630743831. The reversal of 168114630743785 is 587347036411861.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12979036585449 + 155135594158336 = 3602643^2 + 12455344^2 .

It is not a de Polignac number, because 168114630743785 - 21 = 168114630743783 is a prime.

It is a super-2 number, since 2×1681146307437852 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168114630743783) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 480578482 + ... + 480928171.

It is an arithmetic number, because the mean of its divisors is an integer number (6543213031579).

Almost surely, 2168114630743785 is an apocalyptic number.

It is an amenable number.

168114630743785 is a deficient number, since it is larger than the sum of its proper divisors (67441038393059).

168114630743785 is a wasteful number, since it uses less digits than its factorization.

168114630743785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961506714 (or 961506686 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 168114630743785 in words is "one hundred sixty-eight trillion, one hundred fourteen billion, six hundred thirty million, seven hundred forty-three thousand, seven hundred eighty-five".

Divisors: 1 5 11 17 55 85 121 187 289 605 935 1445 2057 3179 10285 15895 34969 174845 961506653 4807533265 10576573183 16345613101 52882865915 81728065505 116342305013 179801744111 277875422717 581711525065 899008720555 1389377113585 1977819185221 3056629649887 9889095926105 15283148249435 33622926148757 168114630743785