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105100513 = 715014359
BaseRepresentation
bin1100100001110…
…11010011100001
321022202122210121
412100323103201
5203401204023
614232400241
72414224330
oct620732341
9238678717
10105100513
1154365631
122b246081
1318a0b26b
14dd5bd17
159360d5d
hex643b4e1

105100513 has 4 divisors (see below), whose sum is σ = 120114880. Its totient is φ = 90086148.

The previous prime is 105100469. The next prime is 105100531. The reversal of 105100513 is 315001501.

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: 315001501 = 1033058267.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105100513 is a prime.

It is a super-2 number, since 2×1051005132 = 22092235665726338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105100543) 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 3 ways as a sum of consecutive naturals, for example, 7507173 + ... + 7507186.

It is an arithmetic number, because the mean of its divisors is an integer number (30028720).

Almost surely, 2105100513 is an apocalyptic number.

It is an amenable number.

105100513 is a deficient number, since it is larger than the sum of its proper divisors (15014367).

105100513 is an equidigital number, since it uses as much as digits as its factorization.

105100513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15014366.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 105100513 is about 10251.8541249864. The cubic root of 105100513 is about 471.9198863957.

The spelling of 105100513 in words is "one hundred five million, one hundred thousand, five hundred thirteen".

Divisors: 1 7 15014359 105100513