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31141342 = 219819509
BaseRepresentation
bin111011011001…
…0110111011110
32011121010220001
41312302313132
530433010332
63031244514
7525461041
oct166626736
964533801
1031141342
111663aa51
12a51973a
1365b463b
1441c8c58
152b020e7
hex1db2dde

31141342 has 8 divisors (see below), whose sum is σ = 49170600. Its totient is φ = 14751144.

The previous prime is 31141339. The next prime is 31141373. The reversal of 31141342 is 24314113.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

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 3 ways as a sum of consecutive naturals, for example, 409717 + ... + 409792.

It is an arithmetic number, because the mean of its divisors is an integer number (6146325).

Almost surely, 231141342 is an apocalyptic number.

31141342 is a deficient number, since it is larger than the sum of its proper divisors (18029258).

31141342 is a wasteful number, since it uses less digits than its factorization.

31141342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819530.

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

The square root of 31141342 is about 5580.4428139709. The cubic root of 31141342 is about 314.6147705300.

Adding to 31141342 its reverse (24314113), we get a palindrome (55455455).

The spelling of 31141342 in words is "thirty-one million, one hundred forty-one thousand, three hundred forty-two".

Divisors: 1 2 19 38 819509 1639018 15570671 31141342