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245050420 = 22561200861
BaseRepresentation
bin11101001101100…
…10110000110100
3122002002211222111
432212302300310
51000213103140
640152140404
76033615466
oct1646626064
9562084874
10245050420
1111636300a
126a097704
133b9cb864
142478c136
15167a77ea
hexe9b2c34

245050420 has 24 divisors (see below), whose sum is σ = 523044648. Its totient is φ = 96412800.

The previous prime is 245050411. The next prime is 245050439. The reversal of 245050420 is 24050542.

245050420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2704 + 245047716 = 52^2 + 15654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245050391 and 245050400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99211 + ... + 101650.

It is an arithmetic number, because the mean of its divisors is an integer number (21793527).

Almost surely, 2245050420 is an apocalyptic number.

245050420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245050420 is an abundant number, since it is smaller than the sum of its proper divisors (277994228).

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

245050420 is a wasteful number, since it uses less digits than its factorization.

245050420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200931 (or 200929 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 245050420 is about 15654.0863674633. The cubic root of 245050420 is about 625.7753960198.

The spelling of 245050420 in words is "two hundred forty-five million, fifty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 200861 401722 803444 1004305 2008610 4017220 12252521 24505042 49010084 61262605 122525210 245050420