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10905380 = 2253714737
BaseRepresentation
bin101001100110…
…011100100100
3202112001100222
4221212130210
510242433010
61025423512
7161460053
oct51463444
922461328
1010905380
116179412
12379ab98
13234a9b5
14163c39a
15e56355
hexa66724

10905380 has 24 divisors (see below), whose sum is σ = 23521848. Its totient is φ = 4243968.

The previous prime is 10905379. The next prime is 10905403. The reversal of 10905380 is 8350901.

It can be written as a sum of positive squares in 4 ways, for example, as 4990756 + 5914624 = 2234^2 + 2432^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 6629 + ... + 8108.

It is an arithmetic number, because the mean of its divisors is an integer number (980077).

Almost surely, 210905380 is an apocalyptic number.

10905380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10905380 is an abundant number, since it is smaller than the sum of its proper divisors (12616468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10905380 is a wasteful number, since it uses less digits than its factorization.

10905380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14783 (or 14781 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 10905380 is about 3302.3294808362. The cubic root of 10905380 is about 221.7584961328.

The spelling of 10905380 in words is "ten million, nine hundred five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 14737 29474 58948 73685 147370 294740 545269 1090538 2181076 2726345 5452690 10905380