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91353068916 = 2237612755743
BaseRepresentation
bin101010100010100010…
…0010011010101110100
322201210112220201201220
41111011010103111310
52444042341201131
6105544513150340
76412546162614
oct1250504232564
9281715821656
1091353068916
113581947586a
1215855b5b3b0
1387cb24b485
1445c88b4a44
15259a050e96
hex1545113574

91353068916 has 12 divisors (see below), whose sum is σ = 213157160832. Its totient is φ = 30451022968.

The previous prime is 91353068887. The next prime is 91353068923. The reversal of 91353068916 is 61986035319.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3806377860 + ... + 3806377883.

It is an arithmetic number, because the mean of its divisors is an integer number (17763096736).

Almost surely, 291353068916 is an apocalyptic number.

It is an amenable number.

91353068916 is an abundant number, since it is smaller than the sum of its proper divisors (121804091916).

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

91353068916 is a wasteful number, since it uses less digits than its factorization.

91353068916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612755750 (or 7612755748 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 91353068916 in words is "ninety-one billion, three hundred fifty-three million, sixty-eight thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 7612755743 15225511486 22838267229 30451022972 45676534458 91353068916