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245116563 = 31074091867
BaseRepresentation
bin11101001110000…
…10111010010011
3122002020012201020
432213002322103
51000222212223
640153410523
76034312356
oct1647027223
9562205636
10245116563
111163a877a
126a109a43
133ba229b3
14247a829d
15167bc1e3
hexe9c2e93

245116563 has 16 divisors (see below), whose sum is σ = 330860160. Its totient is φ = 161401536.

The previous prime is 245116561. The next prime is 245116583. The reversal of 245116563 is 365611542.

It is not a de Polignac number, because 245116563 - 21 = 245116561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245116561) 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, 130356 + ... + 132222.

It is an arithmetic number, because the mean of its divisors is an integer number (20678760).

Almost surely, 2245116563 is an apocalyptic number.

245116563 is a deficient number, since it is larger than the sum of its proper divisors (85743597).

245116563 is a wasteful number, since it uses less digits than its factorization.

245116563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386.

The product of its digits is 21600, while the sum is 33.

The square root of 245116563 is about 15656.1988681800. The cubic root of 245116563 is about 625.8316931940.

The spelling of 245116563 in words is "two hundred forty-five million, one hundred sixteen thousand, five hundred sixty-three".

Divisors: 1 3 107 321 409 1227 1867 5601 43763 131289 199769 599307 763603 2290809 81705521 245116563