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30222202231 = 13323957557
BaseRepresentation
bin11100001001011000…
…100011010101110111
32220000020101221112101
4130021120203111313
5443343340432411
621514530402531
72116635323524
oct341130432567
986006357471
1030222202231
11118a9710941
125a35430447
132b08424000
141669b6a14b
15bbd3bb8c1
hex709623577

30222202231 has 16 divisors (see below), whose sum is σ = 32877129600. Its totient is φ = 27780209184.

The previous prime is 30222202229. The next prime is 30222202247. The reversal of 30222202231 is 13220222203.

It is not a de Polignac number, because 30222202231 - 21 = 30222202229 is a prime.

It is a super-2 number, since 2×302222022312 (a number of 22 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 = 30222202199 and 30222202208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222202261) 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, 496305 + ... + 553861.

It is an arithmetic number, because the mean of its divisors is an integer number (2054820600).

Almost surely, 230222202231 is an apocalyptic number.

30222202231 is a deficient number, since it is larger than the sum of its proper divisors (2654927369).

30222202231 is an equidigital number, since it uses as much as digits as its factorization.

30222202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57835 (or 57809 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30222202231 its reverse (13220222203), we get a palindrome (43442424434).

The spelling of 30222202231 in words is "thirty billion, two hundred twenty-two million, two hundred two thousand, two hundred thirty-one".

Divisors: 1 13 169 239 2197 3107 40391 57557 525083 748241 9727133 13756123 126452729 178829599 2324784787 30222202231