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531680830 = 25111747599
BaseRepresentation
bin11111101100001…
…100111000111110
31101001110011222121
4133230030320332
52042102241310
6124431433154
716114132612
oct3754147076
91331404877
10531680830
1125313574a
1212a0857ba
13861c8155
1450881342
1531a250da
hex1fb0ce3e

531680830 has 16 divisors (see below), whose sum is σ = 957902400. Its totient is φ = 212477472.

The previous prime is 531680813. The next prime is 531680833. The reversal of 531680830 is 38086135.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531680833) 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, 12630 + ... + 34969.

It is an arithmetic number, because the mean of its divisors is an integer number (59868900).

Almost surely, 2531680830 is an apocalyptic number.

531680830 is a deficient number, since it is larger than the sum of its proper divisors (426221570).

531680830 is a wasteful number, since it uses less digits than its factorization.

531680830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48723.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 531680830 is about 23058.2052640703. The cubic root of 531680830 is about 810.1218279388.

The spelling of 531680830 in words is "five hundred thirty-one million, six hundred eighty thousand, eight hundred thirty".

Divisors: 1 2 5 10 1117 2234 5585 11170 47599 95198 237995 475990 53168083 106336166 265840415 531680830