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252231006 = 23172472853
BaseRepresentation
bin11110000100010…
…11110101011110
3122120121122220010
433002023311132
51004032343011
641010104050
76151633236
oct1702136536
9576548803
10252231006
1111a417985
127057b026
1340344021
14256dacc6
15172251a6
hexf08bd5e

252231006 has 16 divisors (see below), whose sum is σ = 534136464. Its totient is φ = 79131264.

The previous prime is 252230983. The next prime is 252231011. The reversal of 252231006 is 600132252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236325 + ... + 1236528.

It is an arithmetic number, because the mean of its divisors is an integer number (33383529).

Almost surely, 2252231006 is an apocalyptic number.

252231006 is an abundant number, since it is smaller than the sum of its proper divisors (281905458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252231006 is a wasteful number, since it uses less digits than its factorization.

252231006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472875.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 252231006 is about 15881.7822047779. The cubic root of 252231006 is about 631.8289057100.

Adding to 252231006 its reverse (600132252), we get a palindrome (852363258).

The spelling of 252231006 in words is "two hundred fifty-two million, two hundred thirty-one thousand, six".

Divisors: 1 2 3 6 17 34 51 102 2472853 4945706 7418559 14837118 42038501 84077002 126115503 252231006