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2642115705931 = 133111935495489
BaseRepresentation
bin100110011100101010010…
…111100011110001001011
3100100120202120211102212201
4212130222113203301023
5321242023110042211
65341434325021031
7361613042643532
oct46345227436113
910316676742781
102642115705931
11929573488619
12368087254777
131621c56a0a20
1491c442b9319
1548ada44d0c1
hex2672a5e3c4b

2642115705931 has 16 divisors (see below), whose sum is σ = 2939603546880. Its totient is φ = 2358223810560.

The previous prime is 2642115705883. The next prime is 2642115705947. The reversal of 2642115705931 is 1395075112462.

2642115705931 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2642115705931 - 239 = 2092359892043 is a prime.

It is a super-2 number, since 2×26421157059312 (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2642115705991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2266966 + ... + 3228523.

It is an arithmetic number, because the mean of its divisors is an integer number (183725221680).

Almost surely, 22642115705931 is an apocalyptic number.

2642115705931 is a deficient number, since it is larger than the sum of its proper divisors (297487840949).

2642115705931 is a wasteful number, since it uses less digits than its factorization.

2642115705931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496726.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 2642115705931 in words is "two trillion, six hundred forty-two billion, one hundred fifteen million, seven hundred five thousand, nine hundred thirty-one".

Divisors: 1 13 31 403 1193 15509 36983 480779 5495489 71441357 170360159 2214682067 6556118377 85229538901 203239669687 2642115705931