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31013213112198 = 233678571921811
BaseRepresentation
bin1110000110100110100111…
…00011010000011110000110
311001210211112010220211102000
413003103103203100132012
513031110030024042243
6145543135020330130
76350426221631232
oct703232343203606
9131724463824360
1031013213112198
1199776a231a789
12358a69a3a3946
13143c6c1ca5075
147930945955c2
1538bad153b5d3
hex1c34d38d0786

31013213112198 has 32 divisors (see below), whose sum is σ = 69946881985920. Its totient is φ = 10183443110280.

The previous prime is 31013213112181. The next prime is 31013213112221. The reversal of 31013213112198 is 89121131231013.

31013213112198 is a `hidden beast` number, since 3 + 1 + 0 + 1 + 321 + 311 + 2 + 19 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4285957288 + ... + 4285964523.

It is an arithmetic number, because the mean of its divisors is an integer number (2185840062060).

Almost surely, 231013213112198 is an apocalyptic number.

31013213112198 is an abundant number, since it is smaller than the sum of its proper divisors (38933668873722).

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

31013213112198 is a wasteful number, since it uses less digits than its factorization.

31013213112198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571921889 (or 8571921883 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 31013213112198 in words is "thirty-one trillion, thirteen billion, two hundred thirteen million, one hundred twelve thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 9 18 27 54 67 134 201 402 603 1206 1809 3618 8571921811 17143843622 25715765433 51431530866 77147296299 154294592598 231441888897 462883777794 574318761337 1148637522674 1722956284011 3445912568022 5168868852033 10337737704066 15506606556099 31013213112198