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105219327437 = 725340515721
BaseRepresentation
bin110000111111110001…
…1111000010111001101
3101001120220201122111022
41201333203320113031
53210442121434222
6120200451203525
710413301345400
oct1417743702715
9331526648438
10105219327437
1140694627054
12184858a65a5
139bcac31883
1451422d5d37
152b0c567042
hex187f8f85cd

105219327437 has 12 divisors (see below), whose sum is σ = 124707392316. Its totient is φ = 88486332480.

The previous prime is 105219327373. The next prime is 105219327457. The reversal of 105219327437 is 734723912501.

It can be written as a sum of positive squares in 2 ways, for example, as 36044541316 + 69174786121 = 189854^2 + 263011^2 .

It is not a de Polignac number, because 105219327437 - 26 = 105219327373 is a prime.

It is a super-2 number, since 2×1052193274372 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105219327457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20255264 + ... + 20260457.

It is an arithmetic number, because the mean of its divisors is an integer number (10392282693).

Almost surely, 2105219327437 is an apocalyptic number.

It is an amenable number.

105219327437 is a deficient number, since it is larger than the sum of its proper divisors (19488064879).

105219327437 is an equidigital number, since it uses as much as digits as its factorization.

105219327437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40515788 (or 40515781 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 105219327437 in words is "one hundred five billion, two hundred nineteen million, three hundred twenty-seven thousand, four hundred thirty-seven".

Divisors: 1 7 49 53 371 2597 40515721 283610047 1985270329 2147333213 15031332491 105219327437