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6155 = 51231
BaseRepresentation
bin1100000001011
322102222
41200023
5144110
644255
723642
oct14013
98388
106155
114696
12368b
132a56
142359
151c55
hex180b

6155 has 4 divisors (see below), whose sum is σ = 7392. Its totient is φ = 4920.

The previous prime is 6151. The next prime is 6163. The reversal of 6155 is 5516.

It can be divided in two parts, 6 and 155, that added together give a palindrome (161).

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6155 - 22 = 6151 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12 and base 14.

It is not an unprimeable number, because it can be changed into a prime (6151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611 + ... + 620.

It is an arithmetic number, because the mean of its divisors is an integer number (1848).

26155 is an apocalyptic number.

6155 is a deficient number, since it is larger than the sum of its proper divisors (1237).

6155 is a wasteful number, since it uses less digits than its factorization.

6155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its digits is 150, while the sum is 17.

The square root of 6155 is about 78.4538080656. The cubic root of 6155 is about 18.3263517953.

The spelling of 6155 in words is "six thousand, one hundred fifty-five".

Divisors: 1 5 1231 6155