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11900975 = 52476039
BaseRepresentation
bin101101011001…
…100000101111
3211101122001212
4231121200233
511021312400
61103025035
7203104502
oct55314057
924348055
1011900975
116799419
123b9b17b
132608bc8
14181b139
1510a1335
hexb5982f

11900975 has 6 divisors (see below), whose sum is σ = 14757240. Its totient is φ = 9520760.

The previous prime is 11900963. The next prime is 11900989. The reversal of 11900975 is 57900911.

It is not a de Polignac number, because 11900975 - 212 = 11896879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237995 + ... + 238044.

It is an arithmetic number, because the mean of its divisors is an integer number (2459540).

Almost surely, 211900975 is an apocalyptic number.

11900975 is a deficient number, since it is larger than the sum of its proper divisors (2856265).

11900975 is an equidigital number, since it uses as much as digits as its factorization.

11900975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476049 (or 476044 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 11900975 is about 3449.7789784275. The cubic root of 11900975 is about 228.3113564489.

The spelling of 11900975 in words is "eleven million, nine hundred thousand, nine hundred seventy-five".

Divisors: 1 5 25 476039 2380195 11900975