31082830 has 8 divisors (see below), whose sum is σ = 55949112. Its totient is φ = 12433128.

The previous prime is 31082827. The next prime is 31082893. The reversal of 31082830 is 3828013.

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

It is a super-2 number, since 2×31082830² = 1932284641617800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31082795 and 31082804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554132 + ... + 1554151.

It is an arithmetic number, because the mean of its divisors is an integer number (6993639).

Almost surely, 2^31082830 is an apocalyptic number.

31082830 is a deficient number, since it is larger than the sum of its proper divisors (24866282).

31082830 is a wasteful number, since it uses less digits than its factorization.

31082830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108290.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 31082830 is about 5575.1977543402. The cubic root of 31082830 is about 314.4176019665.

The spelling of 31082830 in words is "thirty-one million, eighty-two thousand, eight hundred thirty".