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105992377 = 432464939
BaseRepresentation
bin1100101000101…
…01000010111001
321101102222012121
412110111002321
5204113224002
614303441241
72424630451
oct624250271
9241388177
10105992377
1154914707
122b5b6221
1318c611aa
1410110d61
15948a237
hex65150b9

105992377 has 4 divisors (see below), whose sum is σ = 108457360. Its totient is φ = 103527396.

The previous prime is 105992371. The next prime is 105992389. The reversal of 105992377 is 773299501.

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.

It is a cyclic number.

It is not a de Polignac number, because 105992377 - 211 = 105990329 is a prime.

It is a super-2 number, since 2×1059923772 = 22468767964220258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 2464939 = 105992377 / (1 + 0 + 5 + 9 + 9 + 2 + 3 + 7 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105992371) 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, 1232427 + ... + 1232512.

It is an arithmetic number, because the mean of its divisors is an integer number (27114340).

Almost surely, 2105992377 is an apocalyptic number.

It is an amenable number.

105992377 is a deficient number, since it is larger than the sum of its proper divisors (2464983).

105992377 is an equidigital number, since it uses as much as digits as its factorization.

105992377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464982.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 105992377 is about 10295.2599287245. The cubic root of 105992377 is about 473.2510039422.

The spelling of 105992377 in words is "one hundred five million, nine hundred ninety-two thousand, three hundred seventy-seven".

Divisors: 1 43 2464939 105992377