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31214134 = 272229581
BaseRepresentation
bin111011100010…
…0101000110110
32011201211202001
41313010220312
530442323014
63033005514
7526213210
oct167045066
964654661
1031214134
111668a706
12a55389a
13660b803
1442075b0
152b18974
hex1dc4a36

31214134 has 8 divisors (see below), whose sum is σ = 53509968. Its totient is φ = 13377480.

The previous prime is 31214123. The next prime is 31214149. The reversal of 31214134 is 43141213.

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

It is a super-2 number, since 2×312141342 = 1948644322739912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1114777 + ... + 1114804.

It is an arithmetic number, because the mean of its divisors is an integer number (6688746).

Almost surely, 231214134 is an apocalyptic number.

31214134 is a deficient number, since it is larger than the sum of its proper divisors (22295834).

31214134 is a wasteful number, since it uses less digits than its factorization.

31214134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229590.

The product of its digits is 288, while the sum is 19.

The square root of 31214134 is about 5586.9610702062. The cubic root of 31214134 is about 314.8597141347.

Adding to 31214134 its reverse (43141213), we get a palindrome (74355347).

The spelling of 31214134 in words is "thirty-one million, two hundred fourteen thousand, one hundred thirty-four".

Divisors: 1 2 7 14 2229581 4459162 15607067 31214134