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2955 = 35197
BaseRepresentation
bin101110001011
311001110
4232023
543310
621403
711421
oct5613
94043
102955
112247
121863
131464
141111
15d20
hexb8b

2955 has 8 divisors (see below), whose sum is σ = 4752. Its totient is φ = 1568.

The previous prime is 2953. The next prime is 2957. The reversal of 2955 is 5592.

It can be divided in two parts, 295 and 5, that added together give a triangular number (300 = T24).

2955 = T21 + T22 + ... + T29.

2955 is nontrivially palindromic in base 14 and base 16.

It is an interprime number because it is at equal distance from previous prime (2953) and next prime (2957).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(2955) divides (2955-1)5.

It is a cyclic number.

It is not a de Polignac number, because 2955 - 21 = 2953 is a prime.

2955 is an undulating number in base 16.

2955 is a nontrivial repdigit in base 14.

It is a plaindrome in base 11 and base 14.

It is a nialpdrome in base 5, base 14 and base 15.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2953) by changing a digit.

It is a nontrivial repunit in base 14.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84 + ... + 113.

It is an arithmetic number, because the mean of its divisors is an integer number (594).

22955 is an apocalyptic number.

2955 is a deficient number, since it is larger than the sum of its proper divisors (1797).

2955 is a wasteful number, since it uses less digits than its factorization.

2955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205.

The product of its digits is 450, while the sum is 21.

The square root of 2955 is about 54.3599116997. The cubic root of 2955 is about 14.3500196271.

The spelling of 2955 in words is "two thousand, nine hundred fifty-five".

Divisors: 1 3 5 15 197 591 985 2955