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BaseRepresentation
bin11101111100
32121222
4131330
530131
612512
75405
oct3574
92558
101916
111492
121138
13b45
149ac
1587b
hex77c

1916 has 6 divisors (see below), whose sum is σ = 3360. Its totient is φ = 956.

The previous prime is 1913. The next prime is 1931. The reversal of 1916 is 6191.

It is a plaindrome in base 9, base 12, base 14 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1894 and 1903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236 + ... + 243.

It is an arithmetic number, because the mean of its divisors is an integer number (560).

21916 is an apocalyptic number.

It is an amenable number.

1916 is a deficient number, since it is larger than the sum of its proper divisors (1444).

1916 is a wasteful number, since it uses less digits than its factorization.

1916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 481 counting only the distinct ones).

The product of its digits is 54, while the sum is 17.

The square root of 1916 is about 43.7721372565. The cubic root of 1916 is about 12.4202928216.

The spelling of 1916 in words is "one thousand, nine hundred sixteen".

Divisors: 1 2 4 479 958 1916