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11914971 = 331312689
BaseRepresentation
bin101101011100…
…111011011011
3211102100021020
4231130323123
511022234341
61103213523
7203163345
oct55347333
924370236
1011914971
1167a8992
123ba72a3
1326123a3
141822295
1510a5566
hexb5cedb

11914971 has 8 divisors (see below), whose sum is σ = 15938640. Its totient is φ = 7917312.

The previous prime is 11914967. The next prime is 11914993. The reversal of 11914971 is 17941911.

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

It is not a de Polignac number, because 11914971 - 22 = 11914967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11914901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5406 + ... + 7283.

It is an arithmetic number, because the mean of its divisors is an integer number (1992330).

Almost surely, 211914971 is an apocalyptic number.

11914971 is a deficient number, since it is larger than the sum of its proper divisors (4023669).

11914971 is a wasteful number, since it uses less digits than its factorization.

11914971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13005.

The product of its digits is 2268, while the sum is 33.

The square root of 11914971 is about 3451.8069181227. The cubic root of 11914971 is about 228.4008223374.

The spelling of 11914971 in words is "eleven million, nine hundred fourteen thousand, nine hundred seventy-one".

Divisors: 1 3 313 939 12689 38067 3971657 11914971