[go: up one dir, main page]

Search a number
-
+
13235730 = 235441191
BaseRepresentation
bin110010011111…
…011000010010
3220220110000020
4302133120102
511342020410
61151404310
7220334064
oct62373022
926813006
1013235730
117520222
124523696
1329855c1
141a87734
151266a70
hexc9f612

13235730 has 16 divisors (see below), whose sum is σ = 31765824. Its totient is φ = 3529520.

The previous prime is 13235713. The next prime is 13235731. The reversal of 13235730 is 3753231.

13235730 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13235730.

It is not an unprimeable number, because it can be changed into a prime (13235731) 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, 220566 + ... + 220625.

It is an arithmetic number, because the mean of its divisors is an integer number (1985364).

Almost surely, 213235730 is an apocalyptic number.

13235730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13235730 is an abundant number, since it is smaller than the sum of its proper divisors (18530094).

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

13235730 is a wasteful number, since it uses less digits than its factorization.

13235730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441201.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 13235730 is about 3638.0942813512. The cubic root of 13235730 is about 236.5461949403.

Adding to 13235730 its reverse (3753231), we get a palindrome (16988961).

The spelling of 13235730 in words is "thirteen million, two hundred thirty-five thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 441191 882382 1323573 2205955 2647146 4411910 6617865 13235730