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245053305 = 32577110957
BaseRepresentation
bin11101001101100…
…11011101111001
3122002002222221100
432212303131321
51000213201210
640152202013
76033630060
oct1646633571
9562088840
10245053305
111163651a2
126a099309
133b9ccc73
142478d1d7
15167a85c0
hexe9b3779

245053305 has 48 divisors (see below), whose sum is σ = 492321024. Its totient is φ = 110436480.

The previous prime is 245053261. The next prime is 245053321. The reversal of 245053305 is 503350542.

It is not a de Polignac number, because 245053305 - 212 = 245049209 is a prime.

It is a super-2 number, since 2×2450533052 = 120102244582846050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16887 + ... + 27843.

It is an arithmetic number, because the mean of its divisors is an integer number (10256688).

Almost surely, 2245053305 is an apocalyptic number.

It is an amenable number.

245053305 is an abundant number, since it is smaller than the sum of its proper divisors (247267719).

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

245053305 is a wasteful number, since it uses less digits than its factorization.

245053305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11046 (or 11043 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 245053305 is about 15654.1785156552. The cubic root of 245053305 is about 625.7778517796. Note that the first 3 decimals are identical.

It can be divided in two parts, 2450 and 53305, that added together give a palindrome (55755).

The spelling of 245053305 in words is "two hundred forty-five million, fifty-three thousand, three hundred five".

Divisors: 1 3 5 7 9 15 21 35 45 63 71 105 213 315 355 497 639 1065 1491 2485 3195 4473 7455 10957 22365 32871 54785 76699 98613 164355 230097 383495 493065 690291 777947 1150485 2333841 3451455 3889735 5445629 7001523 11669205 16336887 27228145 35007615 49010661 81684435 245053305