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11980895 = 57133749
BaseRepresentation
bin101101101101…
…000001011111
3211112200200212
4231231001133
511031342040
61104443035
7203556503
oct55550137
924480625
1011980895
116843473
12401947b
1326363b4
14183c303
1510b9d65
hexb6d05f

11980895 has 8 divisors (see below), whose sum is σ = 14580000. Its totient is φ = 9449440.

The previous prime is 11980879. The next prime is 11980901. The reversal of 11980895 is 59808911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11980895 - 24 = 11980879 is a prime.

It is a congruent number.

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, 16520 + ... + 17229.

It is an arithmetic number, because the mean of its divisors is an integer number (1822500).

Almost surely, 211980895 is an apocalyptic number.

11980895 is a deficient number, since it is larger than the sum of its proper divisors (2599105).

11980895 is an equidigital number, since it uses as much as digits as its factorization.

11980895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33825.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 11980895 is about 3461.3429474700. The cubic root of 11980895 is about 228.8212852771.

The spelling of 11980895 in words is "eleven million, nine hundred eighty thousand, eight hundred ninety-five".

Divisors: 1 5 71 355 33749 168745 2396179 11980895