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31242014 = 2113138239
BaseRepresentation
bin111011100101…
…1011100011110
32011210020222122
41313023130132
530444221024
63033342542
7526360406
oct167133436
964706878
1031242014
11166a9651
12a567a52
13661b3cb
144213806
152b21d5e
hex1dcb71e

31242014 has 8 divisors (see below), whose sum is σ = 47278080. Its totient is φ = 15482656.

The previous prime is 31242007. The next prime is 31242049. The reversal of 31242014 is 41024213.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31241983 and 31242001.

It is a congruent number.

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, 68894 + ... + 69345.

It is an arithmetic number, because the mean of its divisors is an integer number (5909760).

Almost surely, 231242014 is an apocalyptic number.

31242014 is a deficient number, since it is larger than the sum of its proper divisors (16036066).

31242014 is a wasteful number, since it uses less digits than its factorization.

31242014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138354.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 31242014 is about 5589.4556085544. The cubic root of 31242014 is about 314.9534289091.

Adding to 31242014 its reverse (41024213), we get a palindrome (72266227).

The spelling of 31242014 in words is "thirty-one million, two hundred forty-two thousand, fourteen".

Divisors: 1 2 113 226 138239 276478 15621007 31242014