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52105911407 = 1122343272
BaseRepresentation
bin110000100001110000…
…010001110001101111
311222111100110112222122
4300201300101301233
51323203103131112
635534230303155
73523142640104
oct604160216157
9158440415878
1052105911407
1120109479500
12a1221b7abb
134bb514a454
1427442b8aab
15154e6c8872
hexc21c11c6f

52105911407 has 18 divisors (see below), whose sum is σ = 59777404344. Its totient is φ = 45299016840.

The previous prime is 52105911401. The next prime is 52105911439. The reversal of 52105911407 is 70411950125.

It is a happy number.

It is not a de Polignac number, because 52105911407 - 218 = 52105649263 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 (52105911401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12039878 + ... + 12044204.

It is an arithmetic number, because the mean of its divisors is an integer number (3320966908).

Almost surely, 252105911407 is an apocalyptic number.

52105911407 is a deficient number, since it is larger than the sum of its proper divisors (7671492937).

52105911407 is an frugal number, since it uses more digits than its factorization.

52105911407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699 (or 4361 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 52105911407 in words is "fifty-two billion, one hundred five million, nine hundred eleven thousand, four hundred seven".

Divisors: 1 11 23 121 253 2783 4327 47597 99521 523567 1094731 12042041 18722929 205952219 430627367 2265474409 4736901037 52105911407