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2505793891612 = 221156949861173
BaseRepresentation
bin100100011101101100111…
…101000110110100011100
322212112220002021202022211
4210131230331012310130
5312023331214012422
65155051255250204
7346015623434614
oct44355475066434
98775802252284
102505793891612
11886779364860
12345781379964
131523abb6547b
14893d138da44
15452ac5d4577
hex2476cf46d1c

2505793891612 has 12 divisors (see below), whose sum is σ = 4783788338616. Its totient is φ = 1138997223440.

The previous prime is 2505793891567. The next prime is 2505793891663. The reversal of 2505793891612 is 2161983975052.

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, 28474930543 + ... + 28474930630.

It is an arithmetic number, because the mean of its divisors is an integer number (398649028218).

Almost surely, 22505793891612 is an apocalyptic number.

2505793891612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2505793891612 is a deficient number, since it is larger than the sum of its proper divisors (2277994447004).

2505793891612 is a wasteful number, since it uses less digits than its factorization.

2505793891612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56949861188 (or 56949861186 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 2505793891612 in words is "two trillion, five hundred five billion, seven hundred ninety-three million, eight hundred ninety-one thousand, six hundred twelve".

Divisors: 1 2 4 11 22 44 56949861173 113899722346 227799444692 626448472903 1252896945806 2505793891612