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31442614 = 272320843
BaseRepresentation
bin111011111110…
…0011010110110
32012011110011021
41313330122312
531022130424
63041531354
7531154300
oct167743266
965143137
1031442614
1116826335
12a643b5a
13668b7c8
144266970
152b614e4
hex1dfc6b6

31442614 has 12 divisors (see below), whose sum is σ = 54864324. Its totient is φ = 13475364.

The previous prime is 31442591. The next prime is 31442617. The reversal of 31442614 is 41624413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31442617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160324 + ... + 160519.

It is an arithmetic number, because the mean of its divisors is an integer number (4572027).

Almost surely, 231442614 is an apocalyptic number.

31442614 is a deficient number, since it is larger than the sum of its proper divisors (23421710).

31442614 is a wasteful number, since it uses less digits than its factorization.

31442614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320859 (or 320852 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 31442614 is about 5607.3713984362. The cubic root of 31442614 is about 315.6260799100.

The spelling of 31442614 in words is "thirty-one million, four hundred forty-two thousand, six hundred fourteen".

Divisors: 1 2 7 14 49 98 320843 641686 2245901 4491802 15721307 31442614