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1418 = 2709
BaseRepresentation
bin10110001010
31221112
4112022
521133
610322
74064
oct2612
91845
101418
11107a
129a2
13851
14734
15648
hex58a

1418 has 4 divisors (see below), whose sum is σ = 2130. Its totient is φ = 708.

The previous prime is 1409. The next prime is 1423. The reversal of 1418 is 8141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8141 = 71163.

It can be written as a sum of positive squares in only one way, i.e., 1369 + 49 = 37^2 + 7^2 .

It is an alternating number because its digits alternate between odd and even.

1418 is a modest number, since divided by 18 gives 14 as remainder.

It is a Curzon number.

It is a plaindrome in base 16.

It is a nialpdrome in base 13.

It is an unprimeable number.

1418 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 353 + ... + 356.

21418 is an apocalyptic number.

1418 is a deficient number, since it is larger than the sum of its proper divisors (712).

1418 is an equidigital number, since it uses as much as digits as its factorization.

1418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711.

The product of its digits is 32, while the sum is 14.

The square root of 1418 is about 37.6563407675. The cubic root of 1418 is about 11.2346292143.

Adding to 1418 its reverse (8141), we get a palindrome (9559).

It can be divided in two parts, 141 and 8, that multiplied together give a triangular number (1128 = T47).

The spelling of 1418 in words is "one thousand, four hundred eighteen".

Divisors: 1 2 709 1418