Search a number
-
+
238146130 = 25149915887
BaseRepresentation
bin11100011000111…
…01001001010010
3121121010002002001
432030131021102
5441431134010
635344144214
75621131405
oct1614351122
9547102061
10238146130
11112477792
126790806a
133a452091
14238b1d3c
1515d91c3a
hexe31d252

238146130 has 16 divisors (see below), whose sum is σ = 428976000. Its totient is φ = 95188912.

The previous prime is 238146127. The next prime is 238146157. The reversal of 238146130 is 31641832.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7047 + ... + 22933.

It is an arithmetic number, because the mean of its divisors is an integer number (26811000).

Almost surely, 2238146130 is an apocalyptic number.

238146130 is a deficient number, since it is larger than the sum of its proper divisors (190829870).

238146130 is a wasteful number, since it uses less digits than its factorization.

238146130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17393.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 238146130 is about 15431.9839942893. The cubic root of 238146130 is about 619.8422508830.

Adding to 238146130 its reverse (31641832), we get a palindrome (269787962).

The spelling of 238146130 in words is "two hundred thirty-eight million, one hundred forty-six thousand, one hundred thirty".

Divisors: 1 2 5 10 1499 2998 7495 14990 15887 31774 79435 158870 23814613 47629226 119073065 238146130