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253014631 = 1631552237
BaseRepresentation
bin11110001010010…
…11001001100111
3122122002110211021
433011023021213
51004232432011
641034552011
76161405662
oct1705131147
9578073737
10253014631
1111a902701
1270898607
13405598cc
14258626d9
151732c471
hexf14b267

253014631 has 4 divisors (see below), whose sum is σ = 254567032. Its totient is φ = 251462232.

The previous prime is 253014613. The next prime is 253014637. The reversal of 253014631 is 136410352.

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 253014631 - 25 = 253014599 is a prime.

It is a super-2 number, since 2×2530146312 = 128032807000132322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253014596 and 253014605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253014637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775956 + ... + 776281.

It is an arithmetic number, because the mean of its divisors is an integer number (63641758).

Almost surely, 2253014631 is an apocalyptic number.

253014631 is a deficient number, since it is larger than the sum of its proper divisors (1552401).

253014631 is a wasteful number, since it uses less digits than its factorization.

253014631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552400.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 253014631 is about 15906.4336354822. The cubic root of 253014631 is about 632.4825460353.

Adding to 253014631 its reverse (136410352), we get a palindrome (389424983).

It can be divided in two parts, 2530 and 14631, that added together give a square (17161 = 1312).

The spelling of 253014631 in words is "two hundred fifty-three million, fourteen thousand, six hundred thirty-one".

Divisors: 1 163 1552237 253014631