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105246457 = 313395047
BaseRepresentation
bin1100100010111…
…10111011111001
321100001001222221
412101132323321
5203420341312
614235444041
72415402661
oct621367371
9240031887
10105246457
1154455248
122b2b6621
1318a5c814
14dd991a1
15938e207
hex645eef9

105246457 has 4 divisors (see below), whose sum is σ = 108641536. Its totient is φ = 101851380.

The previous prime is 105246433. The next prime is 105246469. The reversal of 105246457 is 754642501.

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 a de Polignac number, because none of the positive numbers 2k-105246457 is a prime.

It is a super-2 number, since 2×1052464572 = 22153633422105698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105246497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697493 + ... + 1697554.

It is an arithmetic number, because the mean of its divisors is an integer number (27160384).

Almost surely, 2105246457 is an apocalyptic number.

It is an amenable number.

105246457 is a deficient number, since it is larger than the sum of its proper divisors (3395079).

105246457 is an equidigital number, since it uses as much as digits as its factorization.

105246457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395078.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 105246457 is about 10258.9695876340. The cubic root of 105246457 is about 472.1382234865.

Adding to 105246457 its reverse (754642501), we get a palindrome (859888958).

The spelling of 105246457 in words is "one hundred five million, two hundred forty-six thousand, four hundred fifty-seven".

Divisors: 1 31 3395047 105246457