Search a number
-
+
31068097 = 191635163
BaseRepresentation
bin111011010000…
…0111111000001
32011110102102021
41312200333001
530423134342
63025521441
7525034354
oct166407701
964412367
1031068097
111659aa15
12a4a3281
13658a1b8
1441aa29b
152ada567
hex1da0fc1

31068097 has 4 divisors (see below), whose sum is σ = 32703280. Its totient is φ = 29432916.

The previous prime is 31068083. The next prime is 31068113. The reversal of 31068097 is 79086013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31068097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31068797) by changing a digit.

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, 817563 + ... + 817600.

It is an arithmetic number, because the mean of its divisors is an integer number (8175820).

Almost surely, 231068097 is an apocalyptic number.

It is an amenable number.

31068097 is a deficient number, since it is larger than the sum of its proper divisors (1635183).

31068097 is a wasteful number, since it uses less digits than its factorization.

31068097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635182.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 31068097 is about 5573.8762993091. The cubic root of 31068097 is about 314.3679170160.

The spelling of 31068097 in words is "thirty-one million, sixty-eight thousand, ninety-seven".

Divisors: 1 19 1635163 31068097