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105245715 = 357016381
BaseRepresentation
bin1100100010111…
…10110000010011
321100001000222110
412101132300103
5203420330330
614235440403
72415400551
oct621366023
9240030873
10105245715
1154454733
122b2b6103
1318a5c393
14dd98bd1
15938ddb0
hex645ec13

105245715 has 8 divisors (see below), whose sum is σ = 168393168. Its totient is φ = 56131040.

The previous prime is 105245689. The next prime is 105245717. The reversal of 105245715 is 517542501.

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

It is not a de Polignac number, because 105245715 - 223 = 96857107 is a prime.

It is a super-2 number, since 2×1052457152 = 22153321051722450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105245717) 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, 3508176 + ... + 3508205.

It is an arithmetic number, because the mean of its divisors is an integer number (21049146).

Almost surely, 2105245715 is an apocalyptic number.

105245715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105245715 is a deficient number, since it is larger than the sum of its proper divisors (63147453).

105245715 is an equidigital number, since it uses as much as digits as its factorization.

105245715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016389.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 105245715 is about 10258.9334240943. The cubic root of 105245715 is about 472.1371139404.

The spelling of 105245715 in words is "one hundred five million, two hundred forty-five thousand, seven hundred fifteen".

Divisors: 1 3 5 15 7016381 21049143 35081905 105245715