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530605881 = 321314713083
BaseRepresentation
bin11111101000000…
…110011100111001
31100222102120102200
4133220012130321
52041313342011
6124352420413
716102034631
oct3750063471
91328376380
10530605881
11252571063
12129847709
1385c0caa0
14506816c1
15318b1856
hex1fa06739

530605881 has 24 divisors (see below), whose sum is σ = 826215936. Its totient is φ = 326198880.

The previous prime is 530605879. The next prime is 530605903. The reversal of 530605881 is 188506035.

It is not a de Polignac number, because 530605881 - 21 = 530605879 is a prime.

It is a super-2 number, since 2×5306058812 = 563085201903572322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (530605841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170566 + ... + 173648.

It is an arithmetic number, because the mean of its divisors is an integer number (34425664).

Almost surely, 2530605881 is an apocalyptic number.

It is an amenable number.

530605881 is a deficient number, since it is larger than the sum of its proper divisors (295610055).

530605881 is a wasteful number, since it uses less digits than its factorization.

530605881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4573 (or 4570 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 530605881 is about 23034.8840023127. The cubic root of 530605881 is about 809.5754931544.

The spelling of 530605881 in words is "five hundred thirty million, six hundred five thousand, eight hundred eighty-one".

Divisors: 1 3 9 13 39 117 1471 3083 4413 9249 13239 19123 27747 40079 57369 120237 172107 360711 4535093 13605279 40815837 58956209 176868627 530605881