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245144653 = 1321189371
BaseRepresentation
bin11101001110010…
…01110001001101
3122002021122020121
432213021301031
51000224112103
640154144541
76034460305
oct1647116115
9562248217
10245144653
11116417896
126a122151
133ba32710
14247b4605
15167c56bd
hexe9c9c4d

245144653 has 8 divisors (see below), whose sum is σ = 265256096. Its totient is φ = 225212400.

The previous prime is 245144629. The next prime is 245144687. The reversal of 245144653 is 356441542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-245144653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245141653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41943 + ... + 47428.

It is an arithmetic number, because the mean of its divisors is an integer number (33157012).

Almost surely, 2245144653 is an apocalyptic number.

It is an amenable number.

245144653 is a deficient number, since it is larger than the sum of its proper divisors (20111443).

245144653 is a wasteful number, since it uses less digits than its factorization.

245144653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89595.

The product of its digits is 57600, while the sum is 34.

The square root of 245144653 is about 15657.0959312383. The cubic root of 245144653 is about 625.8555987468.

The spelling of 245144653 in words is "two hundred forty-five million, one hundred forty-four thousand, six hundred fifty-three".

Divisors: 1 13 211 2743 89371 1161823 18857281 245144653