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22230403231 = 199111710569
BaseRepresentation
bin10100101101000010…
…010000100010011111
32010101021102111021211
4110231002100202133
5331011440400411
614113522405251
71414614211141
oct245502204237
963337374254
1022230403231
119478534a83
124384b00827
1321337c296a
14110c5d8c91
158a1991221
hex52d09089f

22230403231 has 4 divisors (see below), whose sum is σ = 22342114000. Its totient is φ = 22118692464.

The previous prime is 22230403201. The next prime is 22230403271. The reversal of 22230403231 is 13230403222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13230403222 = 26615201611.

It is a cyclic number.

It is not a de Polignac number, because 22230403231 - 213 = 22230395039 is a prime.

It is a super-2 number, since 2×222304032312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230403201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55855086 + ... + 55855483.

It is an arithmetic number, because the mean of its divisors is an integer number (5585528500).

Almost surely, 222230403231 is an apocalyptic number.

22230403231 is a deficient number, since it is larger than the sum of its proper divisors (111710769).

22230403231 is a wasteful number, since it uses less digits than its factorization.

22230403231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111710768.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 22230403231 its reverse (13230403222), we get a palindrome (35460806453).

Subtracting from 22230403231 its reverse (13230403222), we obtain a palindrome (9000000009).

The spelling of 22230403231 in words is "twenty-two billion, two hundred thirty million, four hundred three thousand, two hundred thirty-one".

Divisors: 1 199 111710569 22230403231