Search a number
-
+
330873680 = 2454135921
BaseRepresentation
bin10011101110001…
…011101101010000
3212001121010100202
4103232023231100
51134200424210
652455434332
711125244204
oct2356135520
9761533322
10330873680
1115a851325
12929859a8
135371a657
1431d2cb04
151e0ab9a5
hex13b8bb50

330873680 has 20 divisors (see below), whose sum is σ = 769281492. Its totient is φ = 132349440.

The previous prime is 330873679. The next prime is 330873689. The reversal of 330873680 is 86378033.

It can be written as a sum of positive squares in 2 ways, for example, as 63616576 + 267257104 = 7976^2 + 16348^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330873689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2067881 + ... + 2068040.

Almost surely, 2330873680 is an apocalyptic number.

It is an amenable number.

330873680 is an abundant number, since it is smaller than the sum of its proper divisors (438407812).

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

330873680 is a wasteful number, since it uses less digits than its factorization.

330873680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135934 (or 4135928 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 330873680 is about 18189.9334798124. The cubic root of 330873680 is about 691.6516339372.

The spelling of 330873680 in words is "three hundred thirty million, eight hundred seventy-three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4135921 8271842 16543684 20679605 33087368 41359210 66174736 82718420 165436840 330873680