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2975 = 52717
BaseRepresentation
bin101110011111
311002012
4232133
543400
621435
711450
oct5637
94065
102975
112265
12187b
13147b
141127
15d35
hexb9f

2975 has 12 divisors (see below), whose sum is σ = 4464. Its totient is φ = 1920.

The previous prime is 2971. The next prime is 2999. The reversal of 2975 is 5792.

It can be divided in two parts, 297 and 5, that multiplied together give a triangular number (1485 = T54).

It is not a de Polignac number, because 2975 - 22 = 2971 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13 and base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 2975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167 + ... + 183.

It is an arithmetic number, because the mean of its divisors is an integer number (372).

22975 is an apocalyptic number.

2975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2975 is a deficient number, since it is larger than the sum of its proper divisors (1489).

2975 is a wasteful number, since it uses less digits than its factorization.

2975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34 (or 29 counting only the distinct ones).

The product of its digits is 630, while the sum is 23.

The square root of 2975 is about 54.5435605732. The cubic root of 2975 is about 14.3823214122.

The spelling of 2975 in words is "two thousand, nine hundred seventy-five".

Divisors: 1 5 7 17 25 35 85 119 175 425 595 2975