Search a number
-
+
23033836 = 2275973191
BaseRepresentation
bin101011111011…
…1011111101100
31121100020111001
41113313133230
521344040321
62141410044
7366533020
oct127673754
947306431
1023033836
1112002731
127869924
134a062b7
1430b8380
15204ec91
hex15f77ec

23033836 has 48 divisors (see below), whose sum is σ = 47738880. Its totient is φ = 9521280.

The previous prime is 23033821. The next prime is 23033839. The reversal of 23033836 is 63833032.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (23033839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120501 + ... + 120691.

It is an arithmetic number, because the mean of its divisors is an integer number (994560).

Almost surely, 223033836 is an apocalyptic number.

It is an amenable number.

23033836 is an abundant number, since it is smaller than the sum of its proper divisors (24705044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23033836 is a wasteful number, since it uses less digits than its factorization.

23033836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 23033836 is about 4799.3578737160. The cubic root of 23033836 is about 284.5260862969.

Adding to 23033836 its reverse (63833032), we get a palindrome (86866868).

The spelling of 23033836 in words is "twenty-three million, thirty-three thousand, eight hundred thirty-six".

Divisors: 1 2 4 7 14 28 59 73 118 146 191 236 292 382 413 511 764 826 1022 1337 1652 2044 2674 4307 5348 8614 11269 13943 17228 22538 27886 30149 45076 55772 60298 78883 97601 120596 157766 195202 315532 390404 822637 1645274 3290548 5758459 11516918 23033836