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242250253 = 7291193351
BaseRepresentation
bin11100111000001…
…11001000001101
3121212211120212121
432130013020031
5444004002003
640012132541
76001043650
oct1634071015
9555746777
10242250253
11114820223
1269167151
133b25b15b
142425d897
1516402cbd
hexe70720d

242250253 has 8 divisors (see below), whose sum is σ = 286404480. Its totient is φ = 200482800.

The previous prime is 242250251. The next prime is 242250269. The reversal of 242250253 is 352052242.

It is a happy number.

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

It is not a de Polignac number, because 242250253 - 21 = 242250251 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 (242250251) 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 7 ways as a sum of consecutive naturals, for example, 596473 + ... + 596878.

It is an arithmetic number, because the mean of its divisors is an integer number (35800560).

Almost surely, 2242250253 is an apocalyptic number.

It is an amenable number.

242250253 is a deficient number, since it is larger than the sum of its proper divisors (44154227).

242250253 is a wasteful number, since it uses less digits than its factorization.

242250253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193387.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 242250253 is about 15564.3905438022. The cubic root of 242250253 is about 623.3827011208.

The spelling of 242250253 in words is "two hundred forty-two million, two hundred fifty thousand, two hundred fifty-three".

Divisors: 1 7 29 203 1193351 8353457 34607179 242250253