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209480242 = 2129181131
BaseRepresentation
bin11000111110001…
…10101000110010
3112121011200212111
430133012220302
5412111331432
632441515534
75122360366
oct1437065062
9477150774
10209480242
11a8278674
125a1a2baa
133452640a
141db6d2a6
15135cd347
hexc7c6a32

209480242 has 8 divisors (see below), whose sum is σ = 314467632. Its totient is φ = 104657700.

The previous prime is 209480231. The next prime is 209480287. The reversal of 209480242 is 242084902.

209480242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37984 + ... + 43147.

It is an arithmetic number, because the mean of its divisors is an integer number (39308454).

Almost surely, 2209480242 is an apocalyptic number.

209480242 is a deficient number, since it is larger than the sum of its proper divisors (104987390).

209480242 is a wasteful number, since it uses less digits than its factorization.

209480242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82424.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 209480242 is about 14473.4322812524. The cubic root of 209480242 is about 593.9014090395.

The spelling of 209480242 in words is "two hundred nine million, four hundred eighty thousand, two hundred forty-two".

Divisors: 1 2 1291 2582 81131 162262 104740121 209480242