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108102418 = 254051209
BaseRepresentation
bin1100111000110…
…00001100010010
321112102011122021
412130120030102
5210133234133
614421002054
72451566254
oct634301422
9245364567
10108102418
1156025a46
123025332a
131951c738
14104ddcd4
15975552d
hex6718312

108102418 has 4 divisors (see below), whose sum is σ = 162153630. Its totient is φ = 54051208.

The previous prime is 108102413. The next prime is 108102443. The reversal of 108102418 is 814201801.

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

It can be written as a sum of positive squares in only one way, i.e., 107391769 + 710649 = 10363^2 + 843^2 .

It is a super-2 number, since 2×1081024182 = 23372265554893448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 108102392 and 108102401.

It is not an unprimeable number, because it can be changed into a prime (108102413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27025603 + ... + 27025606.

Almost surely, 2108102418 is an apocalyptic number.

108102418 is a deficient number, since it is larger than the sum of its proper divisors (54051212).

108102418 is an equidigital number, since it uses as much as digits as its factorization.

108102418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54051211.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 108102418 is about 10397.2312660631. The cubic root of 108102418 is about 476.3708036239.

The spelling of 108102418 in words is "one hundred eight million, one hundred two thousand, four hundred eighteen".

Divisors: 1 2 54051209 108102418