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200424949 = 1091838761
BaseRepresentation
bin10111111001000…
…11110111110101
3111222010122100021
423330203313311
5402302044244
631515445141
74652404204
oct1374436765
9458118307
10200424949
11a315325a
12571567b1
13326a585a
141c89323b
15128e0284
hexbf23df5

200424949 has 4 divisors (see below), whose sum is σ = 202263820. Its totient is φ = 198586080.

The previous prime is 200424941. The next prime is 200424953. The reversal of 200424949 is 949424002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183467025 + 16957924 = 13545^2 + 4118^2 .

It is a cyclic number.

It is not a de Polignac number, because 200424949 - 23 = 200424941 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 (200424941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919272 + ... + 919489.

It is an arithmetic number, because the mean of its divisors is an integer number (50565955).

Almost surely, 2200424949 is an apocalyptic number.

It is an amenable number.

200424949 is a deficient number, since it is larger than the sum of its proper divisors (1838871).

200424949 is a wasteful number, since it uses less digits than its factorization.

200424949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838870.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 200424949 is about 14157.1518675191. The cubic root of 200424949 is about 585.2174407797.

The spelling of 200424949 in words is "two hundred million, four hundred twenty-four thousand, nine hundred forty-nine".

Divisors: 1 109 1838761 200424949