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253003112 = 23176130497
BaseRepresentation
bin11110001010010…
…00010101101000
3122122001220000122
433011020111220
51004232044422
641034422412
76161330255
oct1705102550
9578056018
10253003112
1111a8a4a8a
1270891a08
13405545ab
142585c42c
1517328d42
hexf148568

253003112 has 32 divisors (see below), whose sum is σ = 510536520. Its totient is φ = 117104640.

The previous prime is 253003103. The next prime is 253003117. The reversal of 253003112 is 211300352.

It can be written as a sum of positive squares in 4 ways, for example, as 212984836 + 40018276 = 14594^2 + 6326^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (253003117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6953 + ... + 23544.

Almost surely, 2253003112 is an apocalyptic number.

It is an amenable number.

253003112 is an abundant number, since it is smaller than the sum of its proper divisors (257533408).

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

253003112 is a wasteful number, since it uses less digits than its factorization.

253003112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30581 (or 30577 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 253003112 is about 15906.0715451679. The cubic root of 253003112 is about 632.4729475429.

Adding to 253003112 its reverse (211300352), we get a palindrome (464303464).

The spelling of 253003112 in words is "two hundred fifty-three million, three thousand, one hundred twelve".

Divisors: 1 2 4 8 17 34 61 68 122 136 244 488 1037 2074 4148 8296 30497 60994 121988 243976 518449 1036898 1860317 2073796 3720634 4147592 7441268 14882536 31625389 63250778 126501556 253003112