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11984951 = 118313127
BaseRepresentation
bin101101101110…
…000000110111
3211112220021002
4231232000313
511032004301
61104513515
7203604356
oct55560067
924486232
1011984951
116846520
12401b89b
1326381b4
14183d99d
1510bb16b
hexb6e037

11984951 has 8 divisors (see below), whose sum is σ = 13233024. Its totient is φ = 10763320.

The previous prime is 11984939. The next prime is 11984957. The reversal of 11984951 is 15948911.

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

It is a cyclic number.

It is not a de Polignac number, because 11984951 - 26 = 11984887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11984957) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5651 + ... + 7476.

It is an arithmetic number, because the mean of its divisors is an integer number (1654128).

Almost surely, 211984951 is an apocalyptic number.

11984951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11984951 is a deficient number, since it is larger than the sum of its proper divisors (1248073).

11984951 is a wasteful number, since it uses less digits than its factorization.

11984951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13221.

The product of its digits is 12960, while the sum is 38.

The square root of 11984951 is about 3461.9287976502. The cubic root of 11984951 is about 228.8471040054.

The spelling of 11984951 in words is "eleven million, nine hundred eighty-four thousand, nine hundred fifty-one".

Divisors: 1 11 83 913 13127 144397 1089541 11984951