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35 = 57
BaseRepresentation
bin100011
31022
4203
5120
655
750
oct43
938
1035
1132
122b
1329
1427
1525
hex23

35 has 4 divisors (see below), whose sum is σ = 48. Its totient is φ = 24.

The previous prime is 31. The next prime is 37. The reversal of 35 is 53.

35 is nontrivially palindromic in base 6.

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

It is a Cunningham number, because it is equal to 62-1.

35 is an esthetic number in base 8, base 11 and base 16, because in such bases it adjacent digits differ by 1.

35 is a nontrivial binomial coefficient, being equal to C(7, 3).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 35 - 22 = 31 is a prime.

It is a Duffinian number.

35 is a nontrivial repdigit in base 6.

It is a plaindrome in base 6, base 9, base 10, base 12, base 13, base 14, base 15 and base 16.

It is a nialpdrome in base 6, base 7, base 8 and base 11.

It is a zygodrome in base 6.

It is the 5-th tetrahedral number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 8.

It is an arithmetic number, because the mean of its divisors is an integer number (12).

35 is the 5-th pentagonal number.

35 is a deficient number, since it is larger than the sum of its proper divisors (13).

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

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

The sum of its prime factors is 12.

The product of its digits is 15, while the sum is 8.

The square root of 35 is about 5.9160797831. The cubic root of 35 is about 3.2710663102.

The spelling of 35 in words is "thirty-five", and is thus an aban number, an oban number, and an uban number.

Divisors: 1 5 7 35