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BaseRepresentation
bin11111010100101100
320111222212
4133110230
513101200
62425552
71043024
oct372454
9214885
10128300
1188437
12622b8
1346523
1434a84
1528035
hex1f52c

128300 has 18 divisors (see below), whose sum is σ = 278628. Its totient is φ = 51280.

The previous prime is 128291. The next prime is 128311. The reversal of 128300 is 3821.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542 + ... + 741.

2128300 is an apocalyptic number.

128300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128300 is an abundant number, since it is smaller than the sum of its proper divisors (150328).

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

128300 is a wasteful number, since it uses less digits than its factorization.

128300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 128300 is about 358.1898937714. The cubic root of 128300 is about 50.4361838088.

The spelling of 128300 in words is "one hundred twenty-eight thousand, three hundred".