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108858213 = 3240929573
BaseRepresentation
bin1100111110100…
…00101101100101
321120211120101200
412133100231211
5210331430323
614445113113
72461164612
oct637205545
9246746350
10108858213
11564a1872
1230558799
1319725759
1410659509
159854443
hex67d0b65

108858213 has 12 divisors (see below), whose sum is σ = 157629420. Its totient is φ = 72392256.

The previous prime is 108858203. The next prime is 108858229. The reversal of 108858213 is 312858801.

It can be written as a sum of positive squares in 2 ways, for example, as 58476609 + 50381604 = 7647^2 + 7098^2 .

It is not a de Polignac number, because 108858213 - 29 = 108857701 is a prime.

It is a super-2 number, since 2×1088582132 = 23700221075106738, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108858203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11106 + ... + 18467.

It is an arithmetic number, because the mean of its divisors is an integer number (13135785).

Almost surely, 2108858213 is an apocalyptic number.

It is an amenable number.

108858213 is a deficient number, since it is larger than the sum of its proper divisors (48771207).

108858213 is a wasteful number, since it uses less digits than its factorization.

108858213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29988 (or 29985 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 108858213 is about 10433.5139334742. The cubic root of 108858213 is about 477.4784040378.

The spelling of 108858213 in words is "one hundred eight million, eight hundred fifty-eight thousand, two hundred thirteen".

Divisors: 1 3 9 409 1227 3681 29573 88719 266157 12095357 36286071 108858213