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13992142 = 223378221
BaseRepresentation
bin110101011000…
…000011001110
3222022212121111
4311120003032
512040222032
61215522234
7226634263
oct65300316
928285544
1013992142
11799755a
12482937a
132b8b998
141c0326a
151365c47
hexd580ce

13992142 has 16 divisors (see below), whose sum is σ = 22495392. Its totient is φ = 6510240.

The previous prime is 13992131. The next prime is 13992161. The reversal of 13992142 is 24129931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409 + ... + 5812.

It is an arithmetic number, because the mean of its divisors is an integer number (1405962).

Almost surely, 213992142 is an apocalyptic number.

13992142 is a deficient number, since it is larger than the sum of its proper divisors (8503250).

13992142 is a wasteful number, since it uses less digits than its factorization.

13992142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283.

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

The square root of 13992142 is about 3740.6071699659. The cubic root of 13992142 is about 240.9691253642.

The spelling of 13992142 in words is "thirteen million, nine hundred ninety-two thousand, one hundred forty-two".

Divisors: 1 2 23 37 46 74 851 1702 8221 16442 189083 304177 378166 608354 6996071 13992142