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252534131 = 1931308467
BaseRepresentation
bin11110000110101…
…01110101110011
3122121012001200222
433003111311303
51004122043011
641020403255
76154335053
oct1703256563
9577161628
10252534131
1111a6046a3
12706a652b
134041bca5
1425779563
1517284ddb
hexf0d5d73

252534131 has 4 divisors (see below), whose sum is σ = 253842792. Its totient is φ = 251225472.

The previous prime is 252534109. The next prime is 252534151. The reversal of 252534131 is 131435252.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 252534131 - 214 = 252517747 is a prime.

It is a super-2 number, since 2×2525341312 = 127546974639850322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252534131.

It is not an unprimeable number, because it can be changed into a prime (252534151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654041 + ... + 654426.

It is an arithmetic number, because the mean of its divisors is an integer number (63460698).

Almost surely, 2252534131 is an apocalyptic number.

252534131 is a deficient number, since it is larger than the sum of its proper divisors (1308661).

252534131 is a wasteful number, since it uses less digits than its factorization.

252534131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308660.

The product of its digits is 3600, while the sum is 26.

The square root of 252534131 is about 15891.3225063240. The cubic root of 252534131 is about 632.0819098492.

Adding to 252534131 its reverse (131435252), we get a palindrome (383969383).

The spelling of 252534131 in words is "two hundred fifty-two million, five hundred thirty-four thousand, one hundred thirty-one".

Divisors: 1 193 1308467 252534131