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108406297 = 176376841
BaseRepresentation
bin1100111011000…
…10011000011001
321112222121111001
412131202120121
5210223000142
614431305001
72454303226
oct635423031
9245877431
10108406297
115621328a
123037b161
13195c7b4c
141057c94d
1597b55b7
hex6762619

108406297 has 4 divisors (see below), whose sum is σ = 114783156. Its totient is φ = 102029440.

The previous prime is 108406273. The next prime is 108406303. The reversal of 108406297 is 792604801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 792604801 = 6311125591.

It can be written as a sum of positive squares in 2 ways, for example, as 64064016 + 44342281 = 8004^2 + 6659^2 .

It is a cyclic number.

It is not a de Polignac number, because 108406297 - 219 = 107882009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108406097) 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, 3188404 + ... + 3188437.

It is an arithmetic number, because the mean of its divisors is an integer number (28695789).

Almost surely, 2108406297 is an apocalyptic number.

108406297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

108406297 is a deficient number, since it is larger than the sum of its proper divisors (6376859).

108406297 is an equidigital number, since it uses as much as digits as its factorization.

108406297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376858.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 108406297 is about 10411.8344685267. The cubic root of 108406297 is about 476.8167500295.

The spelling of 108406297 in words is "one hundred eight million, four hundred six thousand, two hundred ninety-seven".

Divisors: 1 17 6376841 108406297