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105112237 = 195532223
BaseRepresentation
bin1100100001111…
…10001010101101
321022210020212211
412100332022231
5203402042422
614232530421
72414303446
oct620761255
9238706784
10105112237
115437341a
122b250a11
1318a136b9
14dd622cd
159364577
hex643e2ad

105112237 has 4 divisors (see below), whose sum is σ = 110644480. Its totient is φ = 99579996.

The previous prime is 105112223. The next prime is 105112243. The reversal of 105112237 is 732211501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 732211501 = 7104601643.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105112237 is a prime.

It is a super-2 number, since 2×1051122372 = 22097164734288338, which 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 (105115237) 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, 2766093 + ... + 2766130.

It is an arithmetic number, because the mean of its divisors is an integer number (27661120).

Almost surely, 2105112237 is an apocalyptic number.

It is an amenable number.

105112237 is a deficient number, since it is larger than the sum of its proper divisors (5532243).

105112237 is an equidigital number, since it uses as much as digits as its factorization.

105112237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532242.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 105112237 is about 10252.4259080473. The cubic root of 105112237 is about 471.9374333543.

Adding to 105112237 its reverse (732211501), we get a palindrome (837323738).

The spelling of 105112237 in words is "one hundred five million, one hundred twelve thousand, two hundred thirty-seven".

Divisors: 1 19 5532223 105112237