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190028 = 2247507
BaseRepresentation
bin101110011001001100
3100122200002
4232121030
522040103
64023432
71421006
oct563114
9318602
10190028
1111a853
1291b78
1368657
144d376
153b488
hex2e64c

190028 has 6 divisors (see below), whose sum is σ = 332556. Its totient is φ = 95012.

The previous prime is 190027. The next prime is 190031. The reversal of 190028 is 820091.

190028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1900282 = 72221281568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189991 and 190009.

It is not an unprimeable number, because it can be changed into a prime (190027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23750 + ... + 23757.

It is an arithmetic number, because the mean of its divisors is an integer number (55426).

2190028 is an apocalyptic number.

It is an amenable number.

190028 is a deficient number, since it is larger than the sum of its proper divisors (142528).

190028 is a wasteful number, since it uses less digits than its factorization.

190028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47511 (or 47509 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 190028 is about 435.9220113736. The cubic root of 190028 is about 57.4917946704.

The spelling of 190028 in words is "one hundred ninety thousand, twenty-eight".

Divisors: 1 2 4 47507 95014 190028