Search a number
-
+
133420 = 2257953
BaseRepresentation
bin100000100100101100
320210000111
4200210230
513232140
62505404
71063660
oct404454
9223014
10133420
1191271
1265264
1348961
14368a0
15297ea
hex2092c

133420 has 24 divisors (see below), whose sum is σ = 320544. Its totient is φ = 45696.

The previous prime is 133417. The next prime is 133439. The reversal of 133420 is 24331.

133420 = T131 + T132 + ... + T144.

It is a self number, because there is not a number n which added to its sum of digits gives 133420.

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, 337 + ... + 616.

It is an arithmetic number, because the mean of its divisors is an integer number (13356).

2133420 is an apocalyptic number.

133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133420 is an abundant number, since it is smaller than the sum of its proper divisors (187124).

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

133420 is a wasteful number, since it uses less digits than its factorization.

133420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 133420 is about 365.2670256128. The cubic root of 133420 is about 51.0983620095.

Adding to 133420 its reverse (24331), we get a palindrome (157751).

The spelling of 133420 in words is "one hundred thirty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 953 1906 3812 4765 6671 9530 13342 19060 26684 33355 66710 133420