Search a number
-
+
331960 = 23543193
BaseRepresentation
bin1010001000010111000
3121212100211
41101002320
541110320
611040504
72551546
oct1210270
9555324
10331960
11207452
12140134
13b8135
1488d96
156855a
hex510b8

331960 has 32 divisors (see below), whose sum is σ = 768240. Its totient is φ = 129024.

The previous prime is 331957. The next prime is 331967. The reversal of 331960 is 69133.

It is a super-2 number, since 2×3319602 = 220394883200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624 + ... + 1816.

2331960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384120).

331960 is an abundant number, since it is smaller than the sum of its proper divisors (436280).

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

331960 is a wasteful number, since it uses less digits than its factorization.

331960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 331960 is about 576.1597000832. The cubic root of 331960 is about 69.2407747489.

The spelling of 331960 in words is "three hundred thirty-one thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 193 215 344 386 430 772 860 965 1544 1720 1930 3860 7720 8299 16598 33196 41495 66392 82990 165980 331960