Search a number
-
+
190045230 = 2356334841
BaseRepresentation
bin10110101001111…
…01110000101110
3111020121022001020
423110331300232
5342122421410
630505155010
74465233504
oct1324756056
9436538036
10190045230
1198303881
125378ba66
13304b01cb
141b350674
1511a3ea70
hexb53dc2e

190045230 has 16 divisors (see below), whose sum is σ = 456108624. Its totient is φ = 50678720.

The previous prime is 190045223. The next prime is 190045231. The reversal of 190045230 is 32540091.

It is a super-2 number, since 2×1900452302 = 72234378891505800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 190045230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190045231) 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, 3167391 + ... + 3167450.

It is an arithmetic number, because the mean of its divisors is an integer number (28506789).

Almost surely, 2190045230 is an apocalyptic number.

190045230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190045230 is an abundant number, since it is smaller than the sum of its proper divisors (266063394).

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

190045230 is a wasteful number, since it uses less digits than its factorization.

190045230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6334851.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 190045230 is about 13785.6893190003. The cubic root of 190045230 is about 574.9353222777.

The spelling of 190045230 in words is "one hundred ninety million, forty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 6334841 12669682 19004523 31674205 38009046 63348410 95022615 190045230