Search a number
-
+
155095 = 531019
BaseRepresentation
bin100101110111010111
321212202021
4211313113
514430340
63154011
71214113
oct456727
9255667
10155095
11a6586
1275907
1355795
1440743
1530e4a
hex25dd7

155095 has 4 divisors (see below), whose sum is σ = 186120. Its totient is φ = 124072.

The previous prime is 155087. The next prime is 155119. The reversal of 155095 is 590551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 590551 = 1345427.

It is a cyclic number.

It is not a de Polignac number, because 155095 - 23 = 155087 is a prime.

155095 is a lucky number.

It is a plaindrome in base 9.

It is a congruent number.

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, 15505 + ... + 15514.

It is an arithmetic number, because the mean of its divisors is an integer number (46530).

2155095 is an apocalyptic number.

155095 is a deficient number, since it is larger than the sum of its proper divisors (31025).

155095 is an equidigital number, since it uses as much as digits as its factorization.

155095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31024.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 155095 is about 393.8210253402. The cubic root of 155095 is about 53.7278257191.

The spelling of 155095 in words is "one hundred fifty-five thousand, ninety-five".

Divisors: 1 5 31019 155095