Search a number
-
+
21030122335 = 52310313113553
BaseRepresentation
bin10011100101011111…
…100011001101011111
32000021121212220102211
4103211133203031133
5321032202403320
613354444301251
71343101043005
oct234537431537
960247786384
1021030122335
118a11a571a2
1240aab41827
131ca1c30691
141037034a75
158313ec55a
hex4e57e335f

21030122335 has 32 divisors (see below), whose sum is σ = 26793980928. Its totient is φ = 15813557760.

The previous prime is 21030122327. The next prime is 21030122339. The reversal of 21030122335 is 53322103012.

It is not a de Polignac number, because 21030122335 - 23 = 21030122327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030122339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1544919 + ... + 1558471.

It is an arithmetic number, because the mean of its divisors is an integer number (837311904).

Almost surely, 221030122335 is an apocalyptic number.

21030122335 is a deficient number, since it is larger than the sum of its proper divisors (5763858593).

21030122335 is a wasteful number, since it uses less digits than its factorization.

21030122335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13815.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 21030122335 its reverse (53322103012), we get a palindrome (74352225347).

The spelling of 21030122335 in words is "twenty-one billion, thirty million, one hundred twenty-two thousand, three hundred thirty-five".

Divisors: 1 5 23 103 115 131 515 655 2369 3013 11845 13493 13553 15065 67465 67765 310339 311719 1395959 1551695 1558595 1775443 6979795 8877215 32107057 40835189 160535285 182870629 204175945 914353145 4206024467 21030122335