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105252553 = 715036079
BaseRepresentation
bin1100100011000…
…00011011001001
321100001101100201
412101200123021
5203421040203
614235532201
72415426520
oct621403311
9240041321
10105252553
115445988a
122b2ba061
1318a62523
14dd9b4b7
159390e1d
hex64606c9

105252553 has 4 divisors (see below), whose sum is σ = 120288640. Its totient is φ = 90216468.

The previous prime is 105252527. The next prime is 105252611. The reversal of 105252553 is 355252501.

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 105252553 - 213 = 105244361 is a prime.

It is a super-2 number, since 2×1052525532 = 22156199826035618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105252503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7518033 + ... + 7518046.

It is an arithmetic number, because the mean of its divisors is an integer number (30072160).

Almost surely, 2105252553 is an apocalyptic number.

It is an amenable number.

105252553 is a deficient number, since it is larger than the sum of its proper divisors (15036087).

105252553 is an equidigital number, since it uses as much as digits as its factorization.

105252553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15036086.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 105252553 is about 10259.2666891937. The cubic root of 105252553 is about 472.1473389130.

The spelling of 105252553 in words is "one hundred five million, two hundred fifty-two thousand, five hundred fifty-three".

Divisors: 1 7 15036079 105252553