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630053 = 837591
BaseRepresentation
bin10011001110100100101
31012000021022
42121310211
5130130203
621300525
75232614
oct2316445
91160238
10630053
113a0406
12264745
13190a18
1412587b
15c6a38
hex99d25

630053 has 4 divisors (see below), whose sum is σ = 637728. Its totient is φ = 622380.

The previous prime is 630043. The next prime is 630067. The reversal of 630053 is 350036.

It is a happy number.

630053 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 630053 - 26 = 629989 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630023) 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, 3713 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (159432).

2630053 is an apocalyptic number.

It is an amenable number.

630053 is a deficient number, since it is larger than the sum of its proper divisors (7675).

630053 is an equidigital number, since it uses as much as digits as its factorization.

630053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7674.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 630053 is about 793.7587794790. The cubic root of 630053 is about 85.7285927176.

Subtracting from 630053 its sum of digits (17), we obtain a palindrome (630036).

Adding to 630053 its reverse (350036), we get a palindrome (980089).

The spelling of 630053 in words is "six hundred thirty thousand, fifty-three".

Divisors: 1 83 7591 630053