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245525200 = 2452613813
BaseRepresentation
bin11101010001001…
…10101011010000
3122002222222020221
432220212223100
51000323301300
640210242424
76040633624
oct1650465320
9562888227
10245525200
11116657798
126a286414
133bb369ab
1424873184
151684d31a
hexea26ad0

245525200 has 30 divisors (see below), whose sum is σ = 589875254. Its totient is φ = 98209920.

The previous prime is 245525197. The next prime is 245525209. The reversal of 245525200 is 2525542.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21603904 + 223921296 = 4648^2 + 14964^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245525209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306507 + ... + 307306.

Almost surely, 2245525200 is an apocalyptic number.

245525200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245525200 is an abundant number, since it is smaller than the sum of its proper divisors (344350054).

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

245525200 is a wasteful number, since it uses less digits than its factorization.

245525200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613831 (or 613820 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 245525200 is about 15669.2437596714. The cubic root of 245525200 is about 626.1792774879.

The spelling of 245525200 in words is "two hundred forty-five million, five hundred twenty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 613813 1227626 2455252 3069065 4910504 6138130 9821008 12276260 15345325 24552520 30690650 49105040 61381300 122762600 245525200