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61069822686 = 23219237763771
BaseRepresentation
bin111000111000000010…
…111000101011011110
312211122001122102120200
4320320002320223132
52000032333311221
644015522124330
74261236633165
oct707002705336
9184561572520
1061069822686
1123999360744
12ba041b06a6
1359b32a3272
142d549b83dc
1518c6627426
hexe380b8ade

61069822686 has 48 divisors (see below), whose sum is σ = 145337811840. Its totient is φ = 18446717520.

The previous prime is 61069822651. The next prime is 61069822699. The reversal of 61069822686 is 68622896016.

It is a happy number.

61069822686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3874020 + ... + 3889751.

It is an arithmetic number, because the mean of its divisors is an integer number (3027871080).

Almost surely, 261069822686 is an apocalyptic number.

61069822686 is an abundant number, since it is smaller than the sum of its proper divisors (84267989154).

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

61069822686 is a wasteful number, since it uses less digits than its factorization.

61069822686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7763821 (or 7763818 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 61069822686 in words is "sixty-one billion, sixty-nine million, eight hundred twenty-two thousand, six hundred eighty-six".

Divisors: 1 2 3 6 9 18 19 23 38 46 57 69 114 138 171 207 342 414 437 874 1311 2622 3933 7866 7763771 15527542 23291313 46582626 69873939 139747878 147511649 178566733 295023298 357133466 442534947 535700199 885069894 1071400398 1327604841 1607100597 2655209682 3214201194 3392767927 6785535854 10178303781 20356607562 30534911343 61069822686