Search a number
-
+
531680190 = 23523770551
BaseRepresentation
bin11111101100001…
…100101110111110
31101001110011002220
4133230030232332
52042102231230
6124431430210
716114131006
oct3754145676
91331404086
10531680190
11253135218
1212a085366
13861c7a82
1450881006
1531a24d10
hex1fb0cbbe

531680190 has 32 divisors (see below), whose sum is σ = 1331513856. Its totient is φ = 135616800.

The previous prime is 531680161. The next prime is 531680257. The reversal of 531680190 is 91086135.

It is a super-2 number, since 2×5316801902 = 565367648876872200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384586 + ... + 385965.

It is an arithmetic number, because the mean of its divisors is an integer number (41609808).

Almost surely, 2531680190 is an apocalyptic number.

531680190 is an abundant number, since it is smaller than the sum of its proper divisors (799833666).

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

531680190 is a wasteful number, since it uses less digits than its factorization.

531680190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770584.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 531680190 is about 23058.1913861430. The cubic root of 531680190 is about 810.1215028828.

The spelling of 531680190 in words is "five hundred thirty-one million, six hundred eighty thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 770551 1541102 2311653 3852755 4623306 7705510 11558265 17722673 23116530 35445346 53168019 88613365 106336038 177226730 265840095 531680190