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252416242 = 2139708317
BaseRepresentation
bin11110000101110…
…01000011110010
3122120222001222201
433002321003302
51004104304432
641014053414
76153334261
oct1702710362
9576861881
10252416242
1111a534071
127064a26a
13403aa430
14257485d8
151725eee7
hexf0b90f2

252416242 has 8 divisors (see below), whose sum is σ = 407749356. Its totient is φ = 116499792.

The previous prime is 252416239. The next prime is 252416249. The reversal of 252416242 is 242614252.

252416242 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 2 ways, for example, as 248094001 + 4322241 = 15751^2 + 2079^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 252416242.

It is not an unprimeable number, because it can be changed into a prime (252416249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4854133 + ... + 4854184.

Almost surely, 2252416242 is an apocalyptic number.

252416242 is a deficient number, since it is larger than the sum of its proper divisors (155333114).

252416242 is a wasteful number, since it uses less digits than its factorization.

252416242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9708332.

The product of its digits is 7680, while the sum is 28.

The square root of 252416242 is about 15887.6128477503. The cubic root of 252416242 is about 631.9835375325.

The spelling of 252416242 in words is "two hundred fifty-two million, four hundred sixteen thousand, two hundred forty-two".

Divisors: 1 2 13 26 9708317 19416634 126208121 252416242