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13214992 = 247117991
BaseRepresentation
bin110010011010…
…010100010000
3220212101120011
4302122110100
511340334432
61151124304
7220216450
oct62322420
926771504
1013214992
11750668a
124513694
13297902b
141a7dd60
151260847
hexc9a510

13214992 has 20 divisors (see below), whose sum is σ = 29262016. Its totient is φ = 5663520.

The previous prime is 13214983. The next prime is 13215029. The reversal of 13214992 is 29941231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58884 + ... + 59107.

Almost surely, 213214992 is an apocalyptic number.

It is an amenable number.

13214992 is an abundant number, since it is smaller than the sum of its proper divisors (16047024).

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

13214992 is a wasteful number, since it uses less digits than its factorization.

13214992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118006 (or 118000 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 13214992 is about 3635.2430455198. The cubic root of 13214992 is about 236.4225886304.

The spelling of 13214992 in words is "thirteen million, two hundred fourteen thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 117991 235982 471964 825937 943928 1651874 1887856 3303748 6607496 13214992