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705253 = 739661
BaseRepresentation
bin10101100001011100101
31022211102111
42230023211
5140032003
623041021
75665063
oct2541345
91284374
10705253
1144195a
122a0171
131b9013
14145033
15dde6d
hexac2e5

705253 has 4 divisors (see below), whose sum is σ = 714988. Its totient is φ = 695520.

The previous prime is 705247. The next prime is 705259. The reversal of 705253 is 352507.

705253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352507 = 1918553.

It is an interprime number because it is at equal distance from previous prime (705247) and next prime (705259).

It can be written as a sum of positive squares in 2 ways, for example, as 124609 + 580644 = 353^2 + 762^2 .

It is a cyclic number.

It is not a de Polignac number, because 705253 - 217 = 574181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705259) 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, 4758 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (178747).

2705253 is an apocalyptic number.

705253 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

705253 is a deficient number, since it is larger than the sum of its proper divisors (9735).

705253 is an equidigital number, since it uses as much as digits as its factorization.

705253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 705253 is about 839.7934269807. The cubic root of 705253 is about 89.0119497484.

It can be divided in two parts, 70525 and 3, that multiplied together give a triangular number (211575 = T650).

The spelling of 705253 in words is "seven hundred five thousand, two hundred fifty-three".

Divisors: 1 73 9661 705253