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10908009 = 327412103
BaseRepresentation
bin101001100111…
…000101101001
3202112011222100
4221213011221
510243024014
61025444013
7161500530
oct51470551
922464870
1010908009
116180392
1237a0609
13234bc58
14163d317
15e57009
hexa67169

10908009 has 36 divisors (see below), whose sum is σ = 18635968. Its totient is φ = 6022080.

The previous prime is 10907993. The next prime is 10908011. The reversal of 10908009 is 90080901.

10908009 = 413 + 423 + ... + 823.

10908009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10908009 - 24 = 10907993 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10908019) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105852 + ... + 105954.

Almost surely, 210908009 is an apocalyptic number.

It is an amenable number.

10908009 is a deficient number, since it is larger than the sum of its proper divisors (7727959).

10908009 is a wasteful number, since it uses less digits than its factorization.

10908009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 10908009 is about 3302.7275091960. The cubic root of 10908009 is about 221.7763147460.

The spelling of 10908009 in words is "ten million, nine hundred eight thousand, nine".

Divisors: 1 3 7 9 21 41 63 103 123 287 309 369 721 861 927 1681 2163 2583 4223 5043 6489 11767 12669 15129 29561 35301 38007 88683 105903 173143 266049 519429 1212001 1558287 3636003 10908009