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31119214 = 2721718679
BaseRepresentation
bin111011010110…
…1011101101110
32011120000112111
41312231131232
530431303324
63030554234
7525336400
oct166553556
964500474
1031119214
1116625365
12a50897a
1365a7549
1441c0b70
152aea794
hex1dad76e

31119214 has 24 divisors (see below), whose sum is σ = 57497040. Its totient is φ = 12551616.

The previous prime is 31119119. The next prime is 31119223. The reversal of 31119214 is 41291113.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7674 + ... + 11005.

It is an arithmetic number, because the mean of its divisors is an integer number (2395710).

Almost surely, 231119214 is an apocalyptic number.

31119214 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31119214 is a deficient number, since it is larger than the sum of its proper divisors (26377826).

31119214 is a wasteful number, since it uses less digits than its factorization.

31119214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18712 (or 18705 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

The square root of 31119214 is about 5578.4598232846. The cubic root of 31119214 is about 314.5402346153.

The spelling of 31119214 in words is "thirty-one million, one hundred nineteen thousand, two hundred fourteen".

Divisors: 1 2 7 14 17 34 49 98 119 238 833 1666 18679 37358 130753 261506 317543 635086 915271 1830542 2222801 4445602 15559607 31119214