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190528 = 2613229
BaseRepresentation
bin101110100001000000
3100200100121
4232201000
522044103
64030024
71422322
oct564100
9320317
10190528
11120168
1292314
1368950
144d612
153b6bd
hex2e840

190528 has 28 divisors (see below), whose sum is σ = 408940. Its totient is φ = 87552.

The previous prime is 190523. The next prime is 190529. The reversal of 190528 is 825091.

It can be written as a sum of positive squares in 2 ways, for example, as 107584 + 82944 = 328^2 + 288^2 .

It is not an unprimeable number, because it can be changed into a prime (190523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718 + ... + 946.

It is an arithmetic number, because the mean of its divisors is an integer number (14605).

2190528 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 190528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204470).

190528 is an abundant number, since it is smaller than the sum of its proper divisors (218412).

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

190528 is a wasteful number, since it uses less digits than its factorization.

190528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 190528 is about 436.4951317025. The cubic root of 190528 is about 57.5421744778.

The spelling of 190528 in words is "one hundred ninety thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 208 229 416 458 832 916 1832 2977 3664 5954 7328 11908 14656 23816 47632 95264 190528