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1198 = 2599
BaseRepresentation
bin10010101110
31122101
4102232
514243
65314
73331
oct2256
91571
101198
1199a
1283a
13712
14618
1554d
hex4ae

1198 has 4 divisors (see below), whose sum is σ = 1800. Its totient is φ = 598.

The previous prime is 1193. The next prime is 1201. The reversal of 1198 is 8911.

It is a semiprime because it is the product of two primes.

It is a magnanimous number.

It is a plaindrome in base 8, base 11 and base 16.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 298 + ... + 301.

It is an arithmetic number, because the mean of its divisors is an integer number (450).

1198 is the 19-th centered heptagonal number.

1198 is a deficient number, since it is larger than the sum of its proper divisors (602).

1198 is an equidigital number, since it uses as much as digits as its factorization.

1198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its digits is 72, while the sum is 19.

The square root of 1198 is about 34.6121365998. The cubic root of 1198 is about 10.6206787503.

The spelling of 1198 in words is "one thousand, one hundred ninety-eight".

Divisors: 1 2 599 1198