Base | Representation |
---|---|
bin | 10100101011111111… |
… | …111111010001110111 |
3 | 2010100001201220010000 |
4 | 110223333333101313 |
5 | 330443013443111 |
6 | 14112102202343 |
7 | 1414313435262 |
oct | 245377772167 |
9 | 63301656100 |
10 | 22213031031 |
11 | 9469749a94 |
12 | 437b1233b3 |
13 | 213001c659 |
14 | 110a195cd9 |
15 | 8a01adc56 |
hex | 52bfff477 |
22213031031 has 40 divisors (see below), whose sum is σ = 34012267520. Its totient is φ = 14439530448.
The previous prime is 22213031021. The next prime is 22213031033. The reversal of 22213031031 is 13013031222.
22213031031 is a `hidden beast` number, since 222 + 130 + 310 + 3 + 1 = 666.
It is not a de Polignac number, because 22213031031 - 211 = 22213028983 is a prime.
It is a super-2 number, since 2×222130310312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 22213030995 and 22213031013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22213031033) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2150826 + ... + 2161128.
It is an arithmetic number, because the mean of its divisors is an integer number (850306688).
Almost surely, 222213031031 is an apocalyptic number.
22213031031 is a deficient number, since it is larger than the sum of its proper divisors (11799236489).
22213031031 is a wasteful number, since it uses less digits than its factorization.
22213031031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10977 (or 10968 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 22213031031 its reverse (13013031222), we get a palindrome (35226062253).
The spelling of 22213031031 in words is "twenty-two billion, two hundred thirteen million, thirty-one thousand, thirty-one".
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