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11898 = 232661
BaseRepresentation
bin10111001111010
3121022200
42321322
5340043
6131030
746455
oct27172
917280
1011898
118a37
126a76
135553
14449c
1537d3
hex2e7a

11898 has 12 divisors (see below), whose sum is σ = 25818. Its totient is φ = 3960.

The previous prime is 11897. The next prime is 11903. The reversal of 11898 is 89811.

It can be divided in two parts, 118 and 98, that added together give a cube (216 = 63).

11898 is nontrivially palindromic in base 5 and base 8.

It can be written as a sum of positive squares in only one way, i.e., 8649 + 3249 = 93^2 + 57^2 .

It is a plaindrome in base 14.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (11897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313 + ... + 348.

211898 is an apocalyptic number.

11898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11898 is an abundant number, since it is smaller than the sum of its proper divisors (13920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11898 is a wasteful number, since it uses less digits than its factorization.

11898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 666 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 11898 is about 109.0779537762. The cubic root of 11898 is about 22.8292330476.

The spelling of 11898 in words is "eleven thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 9 18 661 1322 1983 3966 5949 11898