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23226641 = 17280369
BaseRepresentation
bin101100010011…
…0100100010001
31121201000221222
41120212210101
521421223031
62145454425
7401265104
oct130464421
947630858
1023226641
1112124579
127941415
134a72c99
14312873b
15208be7b
hex1626911

23226641 has 6 divisors (see below), whose sum is σ = 24673590. Its totient is φ = 21860096.

The previous prime is 23226613. The next prime is 23226647. The reversal of 23226641 is 14662232.

It can be written as a sum of positive squares in 3 ways, for example, as 8976016 + 14250625 = 2996^2 + 3775^2 .

It is not a de Polignac number, because 23226641 - 222 = 19032337 is a prime.

It is a super-3 number, since 3×232266413 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23226641.

It is not an unprimeable number, because it can be changed into a prime (23226647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39896 + ... + 40473.

It is an arithmetic number, because the mean of its divisors is an integer number (4112265).

Almost surely, 223226641 is an apocalyptic number.

It is an amenable number.

23226641 is a deficient number, since it is larger than the sum of its proper divisors (1446949).

23226641 is an equidigital number, since it uses as much as digits as its factorization.

23226641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80403 (or 80386 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 23226641 is about 4819.4025563341. The cubic root of 23226641 is about 285.3177578272.

Adding to 23226641 its reverse (14662232), we get a palindrome (37888873).

The spelling of 23226641 in words is "twenty-three million, two hundred twenty-six thousand, six hundred forty-one".

Divisors: 1 17 289 80369 1366273 23226641