Search a number
-
+
23253345 = 335237489
BaseRepresentation
bin101100010110…
…1000101100001
31121202101121000
41120231011201
521423101340
62150222213
7401436003
oct130550541
947671530
1023253345
1112142645
127954969
134a8219b
143134373
152094d30
hex162d161

23253345 has 32 divisors (see below), whose sum is σ = 43142400. Its totient is φ = 11860992.

The previous prime is 23253343. The next prime is 23253361. The reversal of 23253345 is 54335232.

23253345 is a `hidden beast` number, since 2 + 325 + 334 + 5 = 666.

It is not a de Polignac number, because 23253345 - 21 = 23253343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23253341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640 + ... + 6849.

It is an arithmetic number, because the mean of its divisors is an integer number (1348200).

Almost surely, 223253345 is an apocalyptic number.

It is an amenable number.

23253345 is a deficient number, since it is larger than the sum of its proper divisors (19889055).

23253345 is a wasteful number, since it uses less digits than its factorization.

23253345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526 (or 7520 counting only the distinct ones).

The product of its digits is 10800, while the sum is 27.

The square root of 23253345 is about 4822.1722283635. The cubic root of 23253345 is about 285.4270605790.

Adding to 23253345 its reverse (54335232), we get a palindrome (77588577).

The spelling of 23253345 in words is "twenty-three million, two hundred fifty-three thousand, three hundred forty-five".

Divisors: 1 3 5 9 15 23 27 45 69 115 135 207 345 621 1035 3105 7489 22467 37445 67401 112335 172247 202203 337005 516741 861235 1011015 1550223 2583705 4650669 7751115 23253345