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117025105 = 523405021
BaseRepresentation
bin1101111100110…
…10100101010001
322011012111021011
412332122211101
5214424300410
615340130521
72620461031
oct676324521
9264174234
10117025105
116006a76a
1233236a41
131b324b32
14117838c1
15a41918a
hex6f9a951

117025105 has 4 divisors (see below), whose sum is σ = 140430132. Its totient is φ = 93620080.

The previous prime is 117025061. The next prime is 117025109. The reversal of 117025105 is 501520711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501520711 = 618221651.

It can be written as a sum of positive squares in 2 ways, for example, as 19430464 + 97594641 = 4408^2 + 9879^2 .

It is not a de Polignac number, because 117025105 - 219 = 116500817 is a prime.

It is a super-2 number, since 2×1170251052 = 27389750400522050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117025109) 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, 11702506 + ... + 11702515.

It is an arithmetic number, because the mean of its divisors is an integer number (35107533).

Almost surely, 2117025105 is an apocalyptic number.

It is an amenable number.

117025105 is a deficient number, since it is larger than the sum of its proper divisors (23405027).

117025105 is an equidigital number, since it uses as much as digits as its factorization.

117025105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23405026.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 117025105 is about 10817.8142431824. The cubic root of 117025105 is about 489.1323044520.

Adding to 117025105 its reverse (501520711), we get a palindrome (618545816).

It can be divided in two parts, 11702 and 5105, that added together give a 5-th power (16807 = 75).

The spelling of 117025105 in words is "one hundred seventeen million, twenty-five thousand, one hundred five".

Divisors: 1 5 23405021 117025105