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105892291 = 499212209
BaseRepresentation
bin1100100111111…
…00100111000011
321101020212220201
412103330213003
5204102023131
614301350031
72424032611
oct623744703
9241225821
10105892291
115485649a
122b568317
1318c2777b
14100c66b1
15946a761
hex64fc9c3

105892291 has 4 divisors (see below), whose sum is σ = 106105000. Its totient is φ = 105679584.

The previous prime is 105892277. The next prime is 105892307. The reversal of 105892291 is 192298501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105892291 is a prime.

It is a super-2 number, since 2×1058922912 = 22426354586457362, which 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 105892291.

It is not an unprimeable number, because it can be changed into a prime (105892211) 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, 105606 + ... + 106603.

It is an arithmetic number, because the mean of its divisors is an integer number (26526250).

Almost surely, 2105892291 is an apocalyptic number.

105892291 is a deficient number, since it is larger than the sum of its proper divisors (212709).

105892291 is an equidigital number, since it uses as much as digits as its factorization.

105892291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212708.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 105892291 is about 10290.3980000775. The cubic root of 105892291 is about 473.1019972622.

It can be divided in two parts, 10589 and 2291, that added together give a triangular number (12880 = T160).

The spelling of 105892291 in words is "one hundred five million, eight hundred ninety-two thousand, two hundred ninety-one".

Divisors: 1 499 212209 105892291