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31830034 = 227158727
BaseRepresentation
bin111100101101…
…1000000010010
32012220010121011
41321123000102
531122030114
63054121134
7534356635
oct171330022
965803534
1031830034
1116a70415
12a7b01aa
136795c52
144327c1c
152bdb1c4
hex1e5b012

31830034 has 8 divisors (see below), whose sum is σ = 47922048. Its totient is φ = 15856020.

The previous prime is 31830013. The next prime is 31830037. The reversal of 31830034 is 43003813.

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 = 31829987 and 31830014.

It is not an unprimeable number, because it can be changed into a prime (31830037) 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, 28822 + ... + 29905.

It is an arithmetic number, because the mean of its divisors is an integer number (5990256).

Almost surely, 231830034 is an apocalyptic number.

31830034 is a deficient number, since it is larger than the sum of its proper divisors (16092014).

31830034 is a wasteful number, since it uses less digits than its factorization.

31830034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59000.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 31830034 is about 5641.8112339921. The cubic root of 31830034 is about 316.9171201760.

Adding to 31830034 its reverse (43003813), we get a palindrome (74833847).

The spelling of 31830034 in words is "thirty-one million, eight hundred thirty thousand, thirty-four".

Divisors: 1 2 271 542 58727 117454 15915017 31830034