Search a number
-
+
1182530190 = 23539417673
BaseRepresentation
bin100011001111011…
…1111101010001110
310001102010202110110
41012132333222032
54410211431230
6313201420450
741206224612
oct10636775216
93042122413
101182530190
11557564486
1229003a726
1315acb890a
14b30a3342
156dc394b0
hex467bfa8e

1182530190 has 16 divisors (see below), whose sum is σ = 2838072528. Its totient is φ = 315341376.

The previous prime is 1182530161. The next prime is 1182530191. The reversal of 1182530190 is 910352811.

It is a super-2 number, since 2×11825301902 = 2796755300522872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 39417673 = 1182530190 / (1 + 1 + 8 + 2 + 5 + 3 + 0 + 1 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1182530191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19708807 + ... + 19708866.

It is an arithmetic number, because the mean of its divisors is an integer number (177379533).

Almost surely, 21182530190 is an apocalyptic number.

1182530190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1182530190 is an abundant number, since it is smaller than the sum of its proper divisors (1655542338).

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

1182530190 is a wasteful number, since it uses less digits than its factorization.

1182530190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39417683.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 1182530190 is about 34387.9366929742. The cubic root of 1182530190 is about 1057.4765505142.

The spelling of 1182530190 in words is "one billion, one hundred eighty-two million, five hundred thirty thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 39417673 78835346 118253019 197088365 236506038 394176730 591265095 1182530190