Search a number
-
+
31374801 = 326157149
BaseRepresentation
bin111011110101…
…1110111010001
32012001000010200
41313223313101
531012443201
63040245413
7530452503
oct167536721
965030120
1031374801
111678a397
12a610869
136666993
144249d73
152b4b386
hex1debdd1

31374801 has 12 divisors (see below), whose sum is σ = 46062900. Its totient is φ = 20573280.

The previous prime is 31374793. The next prime is 31374823. The reversal of 31374801 is 10847313.

It can be written as a sum of positive squares in 2 ways, for example, as 904401 + 30470400 = 951^2 + 5520^2 .

It is not a de Polignac number, because 31374801 - 23 = 31374793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31374841) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 28026 + ... + 29123.

It is an arithmetic number, because the mean of its divisors is an integer number (3838575).

Almost surely, 231374801 is an apocalyptic number.

It is an amenable number.

31374801 is a deficient number, since it is larger than the sum of its proper divisors (14688099).

31374801 is a wasteful number, since it uses less digits than its factorization.

31374801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57216 (or 57213 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 31374801 is about 5601.3213619645. The cubic root of 31374801 is about 315.3990106107.

The spelling of 31374801 in words is "thirty-one million, three hundred seventy-four thousand, eight hundred one".

Divisors: 1 3 9 61 183 549 57149 171447 514341 3486089 10458267 31374801