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13992827 = 57724251
BaseRepresentation
bin110101011000…
…001101111011
3222022220112212
4311120031323
512040232302
61215525335
7226636262
oct65301573
928286485
1013992827
117998022
12482984b
132b8c0a4
141c035d9
151366052
hexd5837b

13992827 has 4 divisors (see below), whose sum is σ = 14017656. Its totient is φ = 13968000.

The previous prime is 13992821. The next prime is 13992829. The reversal of 13992827 is 72829931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72829931 = 471549573.

It is a cyclic number.

It is not a de Polignac number, because 13992827 - 28 = 13992571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13992821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11549 + ... + 12702.

It is an arithmetic number, because the mean of its divisors is an integer number (3504414).

Almost surely, 213992827 is an apocalyptic number.

13992827 is a deficient number, since it is larger than the sum of its proper divisors (24829).

13992827 is an equidigital number, since it uses as much as digits as its factorization.

13992827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24828.

The product of its digits is 54432, while the sum is 41.

The square root of 13992827 is about 3740.6987315206. The cubic root of 13992827 is about 240.9730575989.

The spelling of 13992827 in words is "thirteen million, nine hundred ninety-two thousand, eight hundred twenty-seven".

Divisors: 1 577 24251 13992827