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105314242591 = 439239895769
BaseRepresentation
bin110001000010100110…
…1111101000000011111
3101001211112022211121101
41202011031331000133
53211140421230331
6120214121413531
710415533202065
oct1420515750037
9331745284541
10105314242591
1140733165228
12184b163a2a7
139c147b4a9c
145150b62035
152b15a65061
hex188537d01f

105314242591 has 4 divisors (see below), whose sum is σ = 105554138800. Its totient is φ = 105074346384.

The previous prime is 105314242571. The next prime is 105314242601. The reversal of 105314242591 is 195242413501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105314242591 - 25 = 105314242559 is a prime.

It is a super-2 number, since 2×1053142425912 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105314242591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105314242541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119947446 + ... + 119948323.

It is an arithmetic number, because the mean of its divisors is an integer number (26388534700).

Almost surely, 2105314242591 is an apocalyptic number.

105314242591 is a deficient number, since it is larger than the sum of its proper divisors (239896209).

105314242591 is an equidigital number, since it uses as much as digits as its factorization.

105314242591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239896208.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 105314242591 in words is "one hundred five billion, three hundred fourteen million, two hundred forty-two thousand, five hundred ninety-one".

Divisors: 1 439 239895769 105314242591