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22055210031 = 371163635249
BaseRepresentation
bin10100100010100101…
…111100110000101111
32002221001202202101210
4110202211330300233
5330132113210111
614044303405503
71410356122611
oct244245746057
962831682353
1022055210031
119398655808
1243362b3893
13210641294a
1410d3232db1
158913d70a6
hex52297cc2f

22055210031 has 16 divisors (see below), whose sum is σ = 30004128000. Its totient is φ = 14407424640.

The previous prime is 22055210029. The next prime is 22055210041. The reversal of 22055210031 is 13001255022.

It is not a de Polignac number, because 22055210031 - 21 = 22055210029 is a prime.

It is a super-2 number, since 2×220552100312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22055210041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282906 + ... + 352343.

It is an arithmetic number, because the mean of its divisors is an integer number (1875258000).

Almost surely, 222055210031 is an apocalyptic number.

22055210031 is a deficient number, since it is larger than the sum of its proper divisors (7948917969).

22055210031 is a wasteful number, since it uses less digits than its factorization.

22055210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635486.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 22055210031 its reverse (13001255022), we get a palindrome (35056465053).

The spelling of 22055210031 in words is "twenty-two billion, fifty-five million, two hundred ten thousand, thirty-one".

Divisors: 1 3 71 163 213 489 11573 34719 635249 1905747 45102679 103545587 135308037 310636761 7351736677 22055210031