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11919080 = 2351915683
BaseRepresentation
bin101101011101…
…111011101000
3211102112220102
4231131323220
511022402310
61103244532
7203211335
oct55357350
924375812
1011919080
116800a88
123ba9748
132614214
14182398c
1510a68a5
hexb5dee8

11919080 has 32 divisors (see below), whose sum is σ = 28231200. Its totient is φ = 4516416.

The previous prime is 11919079. The next prime is 11919107. The reversal of 11919080 is 8091911.

11919080 = 262 + 272 + ... + 3292.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7082 + ... + 8601.

It is an arithmetic number, because the mean of its divisors is an integer number (882225).

Almost surely, 211919080 is an apocalyptic number.

11919080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11919080 is an abundant number, since it is smaller than the sum of its proper divisors (16312120).

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

11919080 is a wasteful number, since it uses less digits than its factorization.

11919080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15713 (or 15709 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 11919080 is about 3452.4020623328. The cubic root of 11919080 is about 228.4270747755.

The spelling of 11919080 in words is "eleven million, nine hundred nineteen thousand, eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 15683 31366 62732 78415 125464 156830 297977 313660 595954 627320 1191908 1489885 2383816 2979770 5959540 11919080