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530979853 = 1731234109
BaseRepresentation
bin11111101001100…
…001110000001101
31101000010120102111
4133221201300031
52041412323403
6124404424021
716105153135
oct3751416015
91330116374
10530979853
112527a7028
121299a8011
1386011081
145073bac5
153193756d
hex1fa61c0d

530979853 has 4 divisors (see below), whose sum is σ = 562213980. Its totient is φ = 499745728.

The previous prime is 530979851. The next prime is 530979857. The reversal of 530979853 is 358979035.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 413430889 + 117548964 = 20333^2 + 10842^2 .

It is a cyclic number.

It is not a de Polignac number, because 530979853 - 21 = 530979851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530979797 and 530979806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530979851) 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, 15617038 + ... + 15617071.

It is an arithmetic number, because the mean of its divisors is an integer number (140553495).

Almost surely, 2530979853 is an apocalyptic number.

It is an amenable number.

530979853 is a deficient number, since it is larger than the sum of its proper divisors (31234127).

530979853 is a wasteful number, since it uses less digits than its factorization.

530979853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31234126.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The square root of 530979853 is about 23043.0000867943. Note that the first 4 decimals coincide. The cubic root of 530979853 is about 809.7656452533.

The spelling of 530979853 in words is "five hundred thirty million, nine hundred seventy-nine thousand, eight hundred fifty-three".

Divisors: 1 17 31234109 530979853