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31214414 = 27111711923
BaseRepresentation
bin111011100010…
…0101101001110
32011201212010102
41313010231032
530442330124
63033011102
7526214060
oct167045516
964655112
1031214414
111668a940
12a553a92
13660b98a
144207730
152b18aae
hex1dc4b4e

31214414 has 32 divisors (see below), whose sum is σ = 61814016. Its totient is φ = 11445120.

The previous prime is 31214399. The next prime is 31214419. The reversal of 31214414 is 41441213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3344 + ... + 8579.

It is an arithmetic number, because the mean of its divisors is an integer number (1931688).

Almost surely, 231214414 is an apocalyptic number.

31214414 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31214414 is a deficient number, since it is larger than the sum of its proper divisors (30599602).

31214414 is a wasteful number, since it uses less digits than its factorization.

31214414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11960.

The product of its digits is 384, while the sum is 20.

The square root of 31214414 is about 5586.9861284954. The cubic root of 31214414 is about 314.8606555934.

Adding to 31214414 its reverse (41441213), we get a palindrome (72655627).

The spelling of 31214414 in words is "thirty-one million, two hundred fourteen thousand, four hundred fourteen".

Divisors: 1 2 7 11 14 17 22 34 77 119 154 187 238 374 1309 2618 11923 23846 83461 131153 166922 202691 262306 405382 918071 1418837 1836142 2229601 2837674 4459202 15607207 31214414