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190054 = 295027
BaseRepresentation
bin101110011001100110
3100122201001
4232121212
522040204
64023514
71421044
oct563146
9318631
10190054
1111a877
1291b9a
1368677
144d394
153b4a4
hex2e666

190054 has 4 divisors (see below), whose sum is σ = 285084. Its totient is φ = 95026.

The previous prime is 190051. The next prime is 190063. The reversal of 190054 is 450091.

190054 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450091 = 1923689.

It is a super-2 number, since 2×1900542 = 72241045832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47512 + ... + 47515.

It is an arithmetic number, because the mean of its divisors is an integer number (71271).

2190054 is an apocalyptic number.

190054 is a deficient number, since it is larger than the sum of its proper divisors (95030).

190054 is an equidigital number, since it uses as much as digits as its factorization.

190054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95029.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 190054 is about 435.9518322017. The cubic root of 190054 is about 57.4944165971.

The spelling of 190054 in words is "one hundred ninety thousand, fifty-four".

Divisors: 1 2 95027 190054