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61115283359 = 13192319975387
BaseRepresentation
bin111000111010110000…
…010011011110011111
312211202020012001220022
4320322300103132133
52000131003031414
644024224342355
74262331223454
oct707260233637
9184666161808
1061115283359
1123a11a90a49
12ba174749bb
1359bc82c480
142d5aa4d82b
1518ca60718e
hexe3ac1379f

61115283359 has 32 divisors (see below), whose sum is σ = 72342305280. Its totient is φ = 51086166912.

The previous prime is 61115283331. The next prime is 61115283367. The reversal of 61115283359 is 95338251116.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61115283359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61115283329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11342264 + ... + 11347650.

It is an arithmetic number, because the mean of its divisors is an integer number (2260697040).

Almost surely, 261115283359 is an apocalyptic number.

61115283359 is a deficient number, since it is larger than the sum of its proper divisors (11227021921).

61115283359 is a wasteful number, since it uses less digits than its factorization.

61115283359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439.

The product of its digits is 194400, while the sum is 44.

The spelling of 61115283359 in words is "sixty-one billion, one hundred fifteen million, two hundred eighty-three thousand, three hundred fifty-nine".

Divisors: 1 13 19 23 247 299 437 1997 5387 5681 25961 37943 45931 70031 102353 123901 493259 597103 872689 1330589 1610713 2354119 10757839 11344957 30603547 139851907 204398941 247430297 2657186233 3216593861 4701175643 61115283359