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670253 = 3591867
BaseRepresentation
bin10100011101000101101
31021001102012
42203220231
5132422003
622211005
75461043
oct2435055
91231365
10670253
11418631
12283a65
131a60cc
14136393
15d38d8
hexa3a2d

670253 has 4 divisors (see below), whose sum is σ = 672480. Its totient is φ = 668028.

The previous prime is 670249. The next prime is 670261. The reversal of 670253 is 352076.

670253 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 670253 - 22 = 670249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670253.

It is not an unprimeable number, because it can be changed into a prime (670223) 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, 575 + ... + 1292.

It is an arithmetic number, because the mean of its divisors is an integer number (168120).

2670253 is an apocalyptic number.

It is an amenable number.

670253 is a deficient number, since it is larger than the sum of its proper divisors (2227).

670253 is a wasteful number, since it uses less digits than its factorization.

670253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 670253 is about 818.6898069477. The cubic root of 670253 is about 87.5144139520.

The spelling of 670253 in words is "six hundred seventy thousand, two hundred fifty-three".

Divisors: 1 359 1867 670253