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253133230 = 25717281757
BaseRepresentation
bin11110001011010…
…00000110101110
3122122022111111211
433011220012232
51004300230410
641041305034
76162411520
oct1705500656
9578274454
10253133230
1111a983819
127093517a
134059b89c
1425893a10
151735268a
hexf1681ae

253133230 has 64 divisors (see below), whose sum is σ = 554055552. Its totient is φ = 81285120.

The previous prime is 253133191. The next prime is 253133263. The reversal of 253133230 is 32331352.

It is a happy number.

253133230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334012 + ... + 334768.

It is an arithmetic number, because the mean of its divisors is an integer number (8657118).

Almost surely, 2253133230 is an apocalyptic number.

253133230 is an abundant number, since it is smaller than the sum of its proper divisors (300922322).

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

253133230 is a wasteful number, since it uses less digits than its factorization.

253133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 253133230 is about 15910.1612185421. The cubic root of 253133230 is about 632.5813546559.

Adding to 253133230 its reverse (32331352), we get a palindrome (285464582).

The spelling of 253133230 in words is "two hundred fifty-three million, one hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 281 562 595 757 1190 1405 1514 1967 2810 3785 3934 4777 5299 7570 9554 9835 10598 12869 19670 23885 25738 26495 33439 47770 52990 64345 66878 90083 128690 167195 180166 212717 334390 425434 450415 900830 1063585 1489019 2127170 2978038 3616189 7232378 7445095 14890190 18080945 25313323 36161890 50626646 126566615 253133230