Search a number
-
+
130158823 = 671942669
BaseRepresentation
bin1111100001000…
…01000011100111
3100001220202100011
413300201003213
5231310040243
620525431051
73140221534
oct760410347
9301822304
10130158823
1167520283
123770b487
1320c72b72
1413401d8b
15b66089d
hex7c210e7

130158823 has 4 divisors (see below), whose sum is σ = 132101560. Its totient is φ = 128216088.

The previous prime is 130158793. The next prime is 130158827. The reversal of 130158823 is 328851031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130158823 - 221 = 128061671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130158827) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 971268 + ... + 971401.

It is an arithmetic number, because the mean of its divisors is an integer number (33025390).

Almost surely, 2130158823 is an apocalyptic number.

130158823 is a deficient number, since it is larger than the sum of its proper divisors (1942737).

130158823 is an equidigital number, since it uses as much as digits as its factorization.

130158823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942736.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 130158823 is about 11408.7169743140. The cubic root of 130158823 is about 506.7859166927.

The spelling of 130158823 in words is "one hundred thirty million, one hundred fifty-eight thousand, eight hundred twenty-three".

Divisors: 1 67 1942669 130158823