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130312027 = 653199559
BaseRepresentation
bin1111100010001…
…10011101011011
3100002012112111101
413301012131123
5231324441102
620533012231
73141430306
oct761063533
9302175441
10130312027
116761539a
1237784077
1320cc7811
1413441b3d
15b690e87
hex7c4675b

130312027 has 4 divisors (see below), whose sum is σ = 130512240. Its totient is φ = 130111816.

The previous prime is 130312019. The next prime is 130312037. The reversal of 130312027 is 720213031.

130312027 = 792 + 802 + ... + 7312.

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 130312027 - 23 = 130312019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130311995 and 130312013.

It is not an unprimeable number, because it can be changed into a prime (130312037) 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, 99127 + ... + 100432.

It is an arithmetic number, because the mean of its divisors is an integer number (32628060).

Almost surely, 2130312027 is an apocalyptic number.

130312027 is a deficient number, since it is larger than the sum of its proper divisors (200213).

130312027 is an equidigital number, since it uses as much as digits as its factorization.

130312027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200212.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 130312027 is about 11415.4293392759. The cubic root of 130312027 is about 506.9846769071.

Adding to 130312027 its reverse (720213031), we get a palindrome (850525058).

The spelling of 130312027 in words is "one hundred thirty million, three hundred twelve thousand, twenty-seven".

Divisors: 1 653 199559 130312027