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194488 = 23723151
BaseRepresentation
bin101111011110111000
3100212210021
4233132320
522210423
64100224
71440010
oct573670
9325707
10194488
11123138
1294674
136a6a8
1450c40
153c95d
hex2f7b8

194488 has 32 divisors (see below), whose sum is σ = 437760. Its totient is φ = 79200.

The previous prime is 194483. The next prime is 194507. The reversal of 194488 is 884491.

194488 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213 + ... + 1363.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

194488 is a Friedman number, since it can be written as 8+(9+8+4)^4-1, using all its digits and the basic arithmetic operations.

2194488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218880).

194488 is an abundant number, since it is smaller than the sum of its proper divisors (243272).

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

194488 is a wasteful number, since it uses less digits than its factorization.

194488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 183 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 194488 is about 441.0079364365. The cubic root of 194488 is about 57.9381028139.

The spelling of 194488 in words is "one hundred ninety-four thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 23 28 46 56 92 151 161 184 302 322 604 644 1057 1208 1288 2114 3473 4228 6946 8456 13892 24311 27784 48622 97244 194488