Search a number
-
+
31035133 = 292234799
BaseRepresentation
bin111011001100…
…0111011111101
32011101202012101
41312120323331
530421111013
63025105101
7524536303
oct166307375
964352171
1031035133
1116578178
12a488191
1365781ac
14419c273
152ad08dd
hex1d98efd

31035133 has 8 divisors (see below), whose sum is σ = 32256000. Its totient is φ = 29824368.

The previous prime is 31035127. The next prime is 31035143. The reversal of 31035133 is 33153013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31035133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31035133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31035143) 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 7 ways as a sum of consecutive naturals, for example, 4068 + ... + 8866.

It is an arithmetic number, because the mean of its divisors is an integer number (4032000).

Almost surely, 231035133 is an apocalyptic number.

It is an amenable number.

31035133 is a deficient number, since it is larger than the sum of its proper divisors (1220867).

31035133 is a wasteful number, since it uses less digits than its factorization.

31035133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051.

The product of its (nonzero) digits is 405, while the sum is 19.

The square root of 31035133 is about 5570.9185059557. The cubic root of 31035133 is about 314.2566936899.

Adding to 31035133 its reverse (33153013), we get a palindrome (64188146).

The spelling of 31035133 in words is "thirty-one million, thirty-five thousand, one hundred thirty-three".

Divisors: 1 29 223 4799 6467 139171 1070177 31035133