Search a number
-
+
31113033001 = 431636944203
BaseRepresentation
bin11100111110011110…
…110011010100101001
32222022022122211121121
4130332132303110221
51002204414024001
622143152135241
72151003263011
oct347636632451
988268584547
1031113033001
1112216550216
126043837521
132c1ab59ccb
1417121bac41
15c216d66a1
hex73e7b3529

31113033001 has 8 divisors (see below), whose sum is σ = 31839257120. Its totient is φ = 30386930112.

The previous prime is 31113032947. The next prime is 31113033023. The reversal of 31113033001 is 10033031113.

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

It is a cyclic number.

It is not a de Polignac number, because 31113033001 - 217 = 31112901929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31113033071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681766 + ... + 725968.

It is an arithmetic number, because the mean of its divisors is an integer number (3979907140).

Almost surely, 231113033001 is an apocalyptic number.

It is an amenable number.

31113033001 is a deficient number, since it is larger than the sum of its proper divisors (726224119).

31113033001 is a wasteful number, since it uses less digits than its factorization.

31113033001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60615.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 31113033001 its reverse (10033031113), we get a palindrome (41146064114).

The spelling of 31113033001 in words is "thirty-one billion, one hundred thirteen million, thirty-three thousand, one".

Divisors: 1 43 16369 44203 703867 1900729 723558907 31113033001