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23280452 = 2213447701
BaseRepresentation
bin101100011001…
…1101101000100
31121210202202222
41120303231010
521424433302
62150551512
7401611016
oct130635504
947722688
1023280452
1112160a48
127968598
134a91620
1431401b6
15209cda2
hex1633b44

23280452 has 12 divisors (see below), whose sum is σ = 43874796. Its totient is φ = 10744800.

The previous prime is 23280449. The next prime is 23280469. The reversal of 23280452 is 25408232.

It can be written as a sum of positive squares in 2 ways, for example, as 13645636 + 9634816 = 3694^2 + 3104^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223799 + ... + 223902.

It is an arithmetic number, because the mean of its divisors is an integer number (3656233).

Almost surely, 223280452 is an apocalyptic number.

It is an amenable number.

23280452 is a deficient number, since it is larger than the sum of its proper divisors (20594344).

23280452 is a wasteful number, since it uses less digits than its factorization.

23280452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447718 (or 447716 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 23280452 is about 4824.9820725056. The cubic root of 23280452 is about 285.5379273072.

Adding to 23280452 its reverse (25408232), we get a palindrome (48688684).

It can be divided in two parts, 23280 and 452, that added together give a palindrome (23732).

The spelling of 23280452 in words is "twenty-three million, two hundred eighty thousand, four hundred fifty-two".

Divisors: 1 2 4 13 26 52 447701 895402 1790804 5820113 11640226 23280452