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530980 = 225139191
BaseRepresentation
bin10000001101000100100
3222222100221
42001220210
5113442410
615214124
74341022
oct2015044
9888327
10530980
11332a2a
12217344
131578b8
14db712
15a74da
hex81a24

530980 has 24 divisors (see below), whose sum is σ = 1128960. Its totient is φ = 209760.

The previous prime is 530977. The next prime is 530983. The reversal of 530980 is 89035.

It is an interprime number because it is at equal distance from previous prime (530977) and next prime (530983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2685 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (47040).

2530980 is an apocalyptic number.

It is an amenable number.

530980 is an abundant number, since it is smaller than the sum of its proper divisors (597980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530980 is a wasteful number, since it uses less digits than its factorization.

530980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 530980 is about 728.6837448441. The cubic root of 530980 is about 80.9765719980.

The spelling of 530980 in words is "five hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 139 191 278 382 556 695 764 955 1390 1910 2780 3820 26549 53098 106196 132745 265490 530980