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252117203 = 1331797919
BaseRepresentation
bin11110000011100…
…00000011010011
3122120101212210012
433001300003103
51004020222303
641003425135
76150650402
oct1701600323
9576355705
10252117203
1111a34a428
12705251ab
13403042a0
14256ab639
15172015d8
hexf0700d3

252117203 has 16 divisors (see below), whose sum is σ = 283852800. Its totient is φ = 222337440.

The previous prime is 252117199. The next prime is 252117211. The reversal of 252117203 is 302711252.

It is a happy number.

It is not a de Polignac number, because 252117203 - 22 = 252117199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252117263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27878 + ... + 35796.

It is an arithmetic number, because the mean of its divisors is an integer number (17740800).

Almost surely, 2252117203 is an apocalyptic number.

252117203 is a deficient number, since it is larger than the sum of its proper divisors (31735597).

252117203 is a wasteful number, since it uses less digits than its factorization.

252117203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 252117203 is about 15878.1989847715. The cubic root of 252117203 is about 631.7338673787.

Adding to 252117203 its reverse (302711252), we get a palindrome (554828455).

The spelling of 252117203 in words is "two hundred fifty-two million, one hundred seventeen thousand, two hundred three".

Divisors: 1 13 31 79 403 1027 2449 7919 31837 102947 245489 625601 3191357 8132813 19393631 252117203