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11616890761 = 72382198779
BaseRepresentation
bin10101101000110101…
…11010111110001001
31002222121020012021101
422310122322332021
5142242411001021
65200422141401
7560606641120
oct126432727611
932877205241
1011616890761
114a21482a73
122302581861
131131988378
147c2bb2ab7
1547ece6a91
hex2b46baf89

11616890761 has 16 divisors (see below), whose sum is σ = 13856947200. Its totient is φ = 9522163728.

The previous prime is 11616890729. The next prime is 11616890797. The reversal of 11616890761 is 16709861611.

It is not a de Polignac number, because 11616890761 - 25 = 11616890729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11616890161) by changing a digit.

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, 1318870 + ... + 1327648.

It is an arithmetic number, because the mean of its divisors is an integer number (866059200).

Almost surely, 211616890761 is an apocalyptic number.

It is an amenable number.

11616890761 is a deficient number, since it is larger than the sum of its proper divisors (2240056439).

11616890761 is an equidigital number, since it uses as much as digits as its factorization.

11616890761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17028.

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 11616890761 in words is "eleven billion, six hundred sixteen million, eight hundred ninety thousand, seven hundred sixty-one".

Divisors: 1 7 23 161 8219 8779 57533 61453 189037 201917 1323259 1413419 72154601 505082207 1659555823 11616890761