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3161212030105 = 57316353134079
BaseRepresentation
bin101110000000000110111…
…010111000110010011001
3102012012122022010221011221
4232000012322320302121
5403243130234430410
610420124000452041
7444250531621543
oct56000672706231
912165568127157
103161212030105
111009731862008
124307b761a021
1319c140c138ac
14ad00978c693
155736c7e64da
hex2e006eb8c99

3161212030105 has 16 divisors (see below), whose sum is σ = 3869011169280. Its totient is φ = 2479023543168.

The previous prime is 3161212030037. The next prime is 3161212030117. The reversal of 3161212030105 is 5010302121613.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3161212030105 - 227 = 3161077812377 is a prime.

It is a super-2 number, since 2×31612120301052 (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3161212030105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26507545 + ... + 26626534.

It is an arithmetic number, because the mean of its divisors is an integer number (241813198080).

Almost surely, 23161212030105 is an apocalyptic number.

It is an amenable number.

3161212030105 is a deficient number, since it is larger than the sum of its proper divisors (707799139175).

3161212030105 is a wasteful number, since it uses less digits than its factorization.

3161212030105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53134320.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 3161212030105 its reverse (5010302121613), we get a palindrome (8171514151718).

The spelling of 3161212030105 in words is "three trillion, one hundred sixty-one billion, two hundred twelve million, thirty thousand, one hundred five".

Divisors: 1 5 73 163 365 815 11899 59495 53134079 265670395 3878787767 8660854877 19393938835 43304274385 632242406021 3161212030105