Search a number
-
+
154340 = 2257717
BaseRepresentation
bin100101101011100100
321211201022
4211223210
514414330
63150312
71211654
oct455344
9254638
10154340
11a5a5a
1275398
1355334
1440364
1530ae5
hex25ae4

154340 has 12 divisors (see below), whose sum is σ = 324156. Its totient is φ = 61728.

The previous prime is 154339. The next prime is 154351. The reversal of 154340 is 43451.

154340 is nontrivially palindromic in base 11.

154340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 65536 + 88804 = 256^2 + 298^2 .

154340 is an undulating number in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3839 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (27013).

2154340 is an apocalyptic number.

154340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154340 is an abundant number, since it is smaller than the sum of its proper divisors (169816).

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

154340 is a wasteful number, since it uses less digits than its factorization.

154340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726 (or 7724 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 154340 is about 392.8612986793. The cubic root of 154340 is about 53.6405018005.

Adding to 154340 its reverse (43451), we get a palindrome (197791).

Subtracting from 154340 its reverse (43451), we obtain a square (110889 = 3332).

It can be divided in two parts, 154 and 340, that added together give a palindrome (494).

The spelling of 154340 in words is "one hundred fifty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 7717 15434 30868 38585 77170 154340