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3231220423 = 43113664997
BaseRepresentation
bin1100000010011000…
…1000001011000111
322100012010000010111
43000212020023013
523104143023143
61252344133451
7143033630464
oct30046101307
98305100114
103231220423
111408a37802
12762167287
133c6580162
142291d466b
1513da1899d
hexc09882c7

3231220423 has 8 divisors (see below), whose sum is σ = 3335629968. Its totient is φ = 3128141184.

The previous prime is 3231220417. The next prime is 3231220439. The reversal of 3231220423 is 3240221323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3231220423 - 29 = 3231219911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3231220394 and 3231220403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231220403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327640 + ... + 337357.

It is an arithmetic number, because the mean of its divisors is an integer number (416953746).

Almost surely, 23231220423 is an apocalyptic number.

3231220423 is a deficient number, since it is larger than the sum of its proper divisors (104409545).

3231220423 is a wasteful number, since it uses less digits than its factorization.

3231220423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665153.

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

The square root of 3231220423 is about 56843.8248449205. The cubic root of 3231220423 is about 1478.3894738754.

Adding to 3231220423 its reverse (3240221323), we get a palindrome (6471441746).

The spelling of 3231220423 in words is "three billion, two hundred thirty-one million, two hundred twenty thousand, four hundred twenty-three".

Divisors: 1 43 113 4859 664997 28594871 75144661 3231220423