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61375686760 = 2352366712703
BaseRepresentation
bin111001001010010001…
…101010100001101000
312212102101011221012201
4321022101222201220
52001144133434020
644110125545544
74301642505163
oct711221524150
9185371157181
1061375686760
1124035a7a973
12ba8a7152b4
135a3177521b
142d83476ada
1518e33e3a0a
hexe4a46a868

61375686760 has 32 divisors (see below), whose sum is σ = 144099440640. Its totient is φ = 23482871104.

The previous prime is 61375686731. The next prime is 61375686769. The reversal of 61375686760 is 6768657316.

It is not an unprimeable number, because it can be changed into a prime (61375686769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33355432 + ... + 33357271.

It is an arithmetic number, because the mean of its divisors is an integer number (4503107520).

Almost surely, 261375686760 is an apocalyptic number.

It is an amenable number.

61375686760 is an abundant number, since it is smaller than the sum of its proper divisors (82723753880).

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

61375686760 is a wasteful number, since it uses less digits than its factorization.

61375686760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66712737 (or 66712733 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 61375686760 in words is "sixty-one billion, three hundred seventy-five million, six hundred eighty-six thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 66712703 133425406 266850812 333563515 533701624 667127030 1334254060 1534392169 2668508120 3068784338 6137568676 7671960845 12275137352 15343921690 30687843380 61375686760