Search a number
-
+
23220230221 = 232176746381
BaseRepresentation
bin10101101000000010…
…001001100001001101
32012221020221220122201
4111220002021201031
5340023334331341
614400042041501
71451263462126
oct255002114115
965836856581
1023220230221
11993623a711
1246004a9291
1322608aa5c6
1411a3c5904d
1590d813331
hex56808984d

23220230221 has 8 divisors (see below), whose sum is σ = 24231441024. Its totient is φ = 22209155760.

The previous prime is 23220230183. The next prime is 23220230251. The reversal of 23220230221 is 12203202232.

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 23220230221 - 29 = 23220229709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220230251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477451 + ... + 523831.

It is an arithmetic number, because the mean of its divisors is an integer number (3028930128).

Almost surely, 223220230221 is an apocalyptic number.

It is an amenable number.

23220230221 is a deficient number, since it is larger than the sum of its proper divisors (1011210803).

23220230221 is a wasteful number, since it uses less digits than its factorization.

23220230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68171.

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

Adding to 23220230221 its reverse (12203202232), we get a palindrome (35423432453).

The spelling of 23220230221 in words is "twenty-three billion, two hundred twenty million, two hundred thirty thousand, two hundred twenty-one".

Divisors: 1 23 21767 46381 500641 1066763 1009575227 23220230221