Search a number
-
+
31023113110 = 2511434964849
BaseRepresentation
bin11100111001000111…
…110010001110010110
32222002001110102201021
4130321013302032112
51002013404104420
622130220551354
72145532052623
oct347107621626
988061412637
1031023113110
111217a814060
1260196b255a
132c05335682
14170429134a
15c188737aa
hex7391f2396

31023113110 has 32 divisors (see below), whose sum is σ = 60933060000. Its totient is φ = 11278364160.

The previous prime is 31023113081. The next prime is 31023113131. The reversal of 31023113110 is 1131132013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445966 + ... + 510814.

It is an arithmetic number, because the mean of its divisors is an integer number (1904158125).

Almost surely, 231023113110 is an apocalyptic number.

31023113110 is a deficient number, since it is larger than the sum of its proper divisors (29909946890).

31023113110 is a wasteful number, since it uses less digits than its factorization.

31023113110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69216.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31023113110 its reverse (1131132013), we get a palindrome (32154245123).

The spelling of 31023113110 in words is "thirty-one billion, twenty-three million, one hundred thirteen thousand, one hundred ten".

Divisors: 1 2 5 10 11 22 55 110 4349 8698 21745 43490 47839 64849 95678 129698 239195 324245 478390 648490 713339 1426678 3566695 7133390 282028301 564056602 1410141505 2820283010 3102311311 6204622622 15511556555 31023113110