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105254013 = 381143261
BaseRepresentation
bin1100100011000…
…00110001111101
321100001110100210
412101200301331
5203421112023
614235543033
72415434004
oct621406175
9240043323
10105254013
115445a997
122b2baa79
1318a630a7
14dd9bc3b
159391593
hex6460c7d

105254013 has 8 divisors (see below), whose sum is σ = 140514976. Its totient is φ = 70081200.

The previous prime is 105253979. The next prime is 105254027. The reversal of 105254013 is 310452501.

105254013 = T47 + T48 + ... + T857.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105254013 - 222 = 101059709 is a prime.

It is a super-2 number, since 2×1052540132 = 22156814505208338, 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 (105254033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19198 + ... + 24063.

It is an arithmetic number, because the mean of its divisors is an integer number (17564372).

Almost surely, 2105254013 is an apocalyptic number.

It is an amenable number.

105254013 is a deficient number, since it is larger than the sum of its proper divisors (35260963).

105254013 is an equidigital number, since it uses as much as digits as its factorization.

105254013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44075.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 105254013 is about 10259.3378441301. The cubic root of 105254013 is about 472.1495220174.

The spelling of 105254013 in words is "one hundred five million, two hundred fifty-four thousand, thirteen".

Divisors: 1 3 811 2433 43261 129783 35084671 105254013