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245044553 = 13233126437
BaseRepresentation
bin11101001101100…
…01010101001001
3122002002112221012
432212301111021
51000212411203
640152053305
76033562415
oct1646612511
9562075835
10245044553
11116359666
126a094235
133b9c8ca0
1424789d45
15167a5bd8
hexe9b1549

245044553 has 16 divisors (see below), whose sum is σ = 284261376. Its totient is φ = 209373120.

The previous prime is 245044529. The next prime is 245044559. The reversal of 245044553 is 355440542.

245044553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 245044553 - 26 = 245044489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245044559) 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, 3950 + ... + 22487.

It is an arithmetic number, because the mean of its divisors is an integer number (17766336).

Almost surely, 2245044553 is an apocalyptic number.

245044553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

245044553 is a deficient number, since it is larger than the sum of its proper divisors (39216823).

245044553 is a wasteful number, since it uses less digits than its factorization.

245044553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26504.

The product of its (nonzero) digits is 48000, while the sum is 32.

The square root of 245044553 is about 15653.8989711829. The cubic root of 245044553 is about 625.7704018727.

The spelling of 245044553 in words is "two hundred forty-five million, forty-four thousand, five hundred fifty-three".

Divisors: 1 13 23 31 299 403 713 9269 26437 343681 608051 819547 7904663 10654111 18849581 245044553