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105054023 = 739142157
BaseRepresentation
bin1100100001011…
…11111101000111
321022200022000202
412100233331013
5203343212043
614231401115
72413641644
oct620577507
9238608022
10105054023
1154333708
122b22319b
13189c3059
14dd48dcb
1593521b8
hex642ff47

105054023 has 4 divisors (see below), whose sum is σ = 105196920. Its totient is φ = 104911128.

The previous prime is 105053969. The next prime is 105054049. The reversal of 105054023 is 320450501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105054023 - 26 = 105053959 is a prime.

It is a super-2 number, since 2×1050540232 = 22072695496969058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105053986 and 105054004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105054073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70340 + ... + 71817.

It is an arithmetic number, because the mean of its divisors is an integer number (26299230).

Almost surely, 2105054023 is an apocalyptic number.

105054023 is a deficient number, since it is larger than the sum of its proper divisors (142897).

105054023 is an equidigital number, since it uses as much as digits as its factorization.

105054023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142896.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 105054023 is about 10249.5864794635. The cubic root of 105054023 is about 471.8502933602.

The spelling of 105054023 in words is "one hundred five million, fifty-four thousand, twenty-three".

Divisors: 1 739 142157 105054023