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61202082939 = 3461440910037
BaseRepresentation
bin111000111111111011…
…011010110001111011
312211222021111221112120
4320333323122301323
52000320213123224
644041005012323
74264434056454
oct707773326173
9184867457476
1061202082939
1123a56a86838
12ba405540a3
135a0480077a
142d683a612b
1518d3050779
hexe3fedac7b

61202082939 has 16 divisors (see below), whose sum is σ = 81806487840. Its totient is φ = 40699592960.

The previous prime is 61202082911. The next prime is 61202082943. The reversal of 61202082939 is 93928020216.

It is a cyclic number.

It is not a de Polignac number, because 61202082939 - 216 = 61202017403 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 61202082939.

It is not an unprimeable number, because it can be changed into a prime (61202082989) 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, 6092629 + ... + 6102665.

It is an arithmetic number, because the mean of its divisors is an integer number (5112905490).

Almost surely, 261202082939 is an apocalyptic number.

61202082939 is a deficient number, since it is larger than the sum of its proper divisors (20604404901).

61202082939 is a wasteful number, since it uses less digits than its factorization.

61202082939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14910.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 61202082939 in words is "sixty-one billion, two hundred two million, eighty-two thousand, nine hundred thirty-nine".

Divisors: 1 3 461 1383 4409 10037 13227 30111 2032549 4627057 6097647 13881171 44253133 132759399 20400694313 61202082939