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130019005 = 526003801
BaseRepresentation
bin1111011111111…
…10111010111101
3100001122122112201
413233332322331
5231241102010
620522431501
73136100104
oct757767275
9301578481
10130019005
1167435226
1237662591
1320c2432c
14133a703b
15b63423a
hex7bfeebd

130019005 has 4 divisors (see below), whose sum is σ = 156022812. Its totient is φ = 104015200.

The previous prime is 130018969. The next prime is 130019051. The reversal of 130019005 is 500910031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500910031 = 2321778697.

It can be written as a sum of positive squares in 2 ways, for example, as 78092569 + 51926436 = 8837^2 + 7206^2 .

It is not a de Polignac number, because 130019005 - 215 = 129986237 is a prime.

It is a super-2 number, since 2×1300190052 = 33809883322380050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13001896 + ... + 13001905.

It is an arithmetic number, because the mean of its divisors is an integer number (39005703).

Almost surely, 2130019005 is an apocalyptic number.

It is an amenable number.

130019005 is a deficient number, since it is larger than the sum of its proper divisors (26003807).

130019005 is an equidigital number, since it uses as much as digits as its factorization.

130019005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26003806.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 130019005 is about 11402.5876449164. The cubic root of 130019005 is about 506.6043867258.

Adding to 130019005 its reverse (500910031), we get a palindrome (630929036).

The spelling of 130019005 in words is "one hundred thirty million, nineteen thousand, five".

Divisors: 1 5 26003801 130019005