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130612742 = 2135023567
BaseRepresentation
bin1111100100011…
…11111000000110
3100002202210222222
413302033320012
5231414101432
620543252342
73144122111
oct762177006
9302683888
10130612742
1167800317
12378aa0b2
13210a1660
14134bd578
15b700112
hex7c8fe06

130612742 has 8 divisors (see below), whose sum is σ = 210989856. Its totient is φ = 60282792.

The previous prime is 130612733. The next prime is 130612747. The reversal of 130612742 is 247216031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 5023567 = 130612742 / (1 + 3 + 0 + 6 + 1 + 2 + 7 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130612747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2511758 + ... + 2511809.

It is an arithmetic number, because the mean of its divisors is an integer number (26373732).

Almost surely, 2130612742 is an apocalyptic number.

130612742 is a deficient number, since it is larger than the sum of its proper divisors (80377114).

130612742 is a wasteful number, since it uses less digits than its factorization.

130612742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023582.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 130612742 is about 11428.5931767650. The cubic root of 130612742 is about 507.3743589582.

Adding to 130612742 its reverse (247216031), we get a palindrome (377828773).

The spelling of 130612742 in words is "one hundred thirty million, six hundred twelve thousand, seven hundred forty-two".

Divisors: 1 2 13 26 5023567 10047134 65306371 130612742