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31679234 = 223688679
BaseRepresentation
bin111100011011…
…0001100000010
32012121110201222
41320312030002
531102213414
63050555042
7533161166
oct170661402
965543658
1031679234
1116978094
12a738a82
136742412
1442c8ca6
152bab68e
hex1e36302

31679234 has 8 divisors (see below), whose sum is σ = 49584960. Its totient is φ = 15150916.

The previous prime is 31679233. The next prime is 31679239. The reversal of 31679234 is 43297613.

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

It is a junction number, because it is equal to n+sod(n) for n = 31679194 and 31679203.

It is not an unprimeable number, because it can be changed into a prime (31679231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344294 + ... + 344385.

It is an arithmetic number, because the mean of its divisors is an integer number (6198120).

Almost surely, 231679234 is an apocalyptic number.

31679234 is a deficient number, since it is larger than the sum of its proper divisors (17905726).

31679234 is a wasteful number, since it uses less digits than its factorization.

31679234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688704.

The product of its digits is 27216, while the sum is 35.

The square root of 31679234 is about 5628.4308648148. The cubic root of 31679234 is about 316.4158454604.

It can be divided in two parts, 31679 and 234, that added together give a palindrome (31913).

The spelling of 31679234 in words is "thirty-one million, six hundred seventy-nine thousand, two hundred thirty-four".

Divisors: 1 2 23 46 688679 1377358 15839617 31679234