Search a number
-
+
190530012 = 22318187721
BaseRepresentation
bin10110101101101…
…00000111011100
3111021111221001010
423112310013130
5342233430022
630523415220
74502323041
oct1326640734
9437457033
10190530012
1198605022
1253984510
133061ca6a
141b4391c8
1511ad850c
hexb5b41dc

190530012 has 24 divisors (see below), whose sum is σ = 447031312. Its totient is φ = 63158400.

The previous prime is 190529987. The next prime is 190530013. The reversal of 190530012 is 210035091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190530013) 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, 41689 + ... + 46032.

Almost surely, 2190530012 is an apocalyptic number.

190530012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190530012 is an abundant number, since it is smaller than the sum of its proper divisors (256501300).

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

190530012 is a wasteful number, since it uses less digits than its factorization.

190530012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87909 (or 87907 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 190530012 is about 13803.2609190727. The cubic root of 190530012 is about 575.4237702798.

The spelling of 190530012 in words is "one hundred ninety million, five hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 87721 175442 263163 350884 526326 1052652 15877501 31755002 47632503 63510004 95265006 190530012