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189700 = 22527271
BaseRepresentation
bin101110010100000100
3100122012221
4232110010
522032300
64022124
71420030
oct562404
9318187
10189700
1111a585
1291944
1368464
144d1c0
153b31a
hex2e504

189700 has 36 divisors (see below), whose sum is σ = 472192. Its totient is φ = 64800.

The previous prime is 189697. The next prime is 189701. The reversal of 189700 is 7981.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (189701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 565 + ... + 835.

2189700 is an apocalyptic number.

189700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236096).

189700 is an abundant number, since it is smaller than the sum of its proper divisors (282492).

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

189700 is a wasteful number, since it uses less digits than its factorization.

189700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 189700 is about 435.5456348077. The cubic root of 189700 is about 57.4586974975.

The spelling of 189700 in words is "one hundred eighty-nine thousand, seven hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 271 350 542 700 1084 1355 1897 2710 3794 5420 6775 7588 9485 13550 18970 27100 37940 47425 94850 189700