Search a number
-
+
13380620 = 2251160821
BaseRepresentation
bin110011000010…
…110000001100
3221011210202112
4303002300030
511411134440
61154443152
7221506361
oct63026014
927153675
1013380620
11760a070
1245934b8
132a06536
141ac4468
151294965
hexcc2c0c

13380620 has 24 divisors (see below), whose sum is σ = 30654288. Its totient is φ = 4865600.

The previous prime is 13380599. The next prime is 13380659. The reversal of 13380620 is 2608331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30191 + ... + 30630.

It is an arithmetic number, because the mean of its divisors is an integer number (1277262).

Almost surely, 213380620 is an apocalyptic number.

13380620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13380620 is an abundant number, since it is smaller than the sum of its proper divisors (17273668).

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

13380620 is a wasteful number, since it uses less digits than its factorization.

13380620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60841 (or 60839 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13380620 is about 3657.9529794682. The cubic root of 13380620 is about 237.4062122760.

Adding to 13380620 its reverse (2608331), we get a palindrome (15988951).

The spelling of 13380620 in words is "thirteen million, three hundred eighty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 60821 121642 243284 304105 608210 669031 1216420 1338062 2676124 3345155 6690310 13380620