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108220229 = 138324633
BaseRepresentation
bin1100111001101…
…00111101000101
321112122011020122
412130310331011
5210201021404
614423311325
72452566605
oct634647505
9245564218
10108220229
11560a6507
12302ab545
1319561250
1410530c05
15977a3be
hex6734f45

108220229 has 4 divisors (see below), whose sum is σ = 116544876. Its totient is φ = 99895584.

The previous prime is 108220193. The next prime is 108220241. The reversal of 108220229 is 922022801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5299204 + 102921025 = 2302^2 + 10145^2 .

It is a cyclic number.

It is not a de Polignac number, because 108220229 - 216 = 108154693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108220198 and 108220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108220829) 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, 4162304 + ... + 4162329.

It is an arithmetic number, because the mean of its divisors is an integer number (29136219).

Almost surely, 2108220229 is an apocalyptic number.

It is an amenable number.

108220229 is a deficient number, since it is larger than the sum of its proper divisors (8324647).

108220229 is an equidigital number, since it uses as much as digits as its factorization.

108220229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8324646.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 108220229 is about 10402.8952220043. The cubic root of 108220229 is about 476.5437918783.

The spelling of 108220229 in words is "one hundred eight million, two hundred twenty thousand, two hundred twenty-nine".

Divisors: 1 13 8324633 108220229