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130912216397 = 655119983547
BaseRepresentation
bin111100111101011111…
…0011110010101001101
3110111220111102122021022
41321322332132111031
54121102011411042
6140050143043525
712313061323244
oct1717276362515
9414814378238
10130912216397
1150579595886
12214562a05a5
13c463b87851
14649c6c595b
153612ea4cd2
hex1e7af9e54d

130912216397 has 4 divisors (see below), whose sum is σ = 130932206496. Its totient is φ = 130892226300.

The previous prime is 130912216363. The next prime is 130912216403. The reversal of 130912216397 is 793612219031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130912216397 - 230 = 129838474573 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 (130912216697) 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, 9985223 + ... + 9998324.

It is an arithmetic number, because the mean of its divisors is an integer number (32733051624).

Almost surely, 2130912216397 is an apocalyptic number.

It is an amenable number.

130912216397 is a deficient number, since it is larger than the sum of its proper divisors (19990099).

130912216397 is an equidigital number, since it uses as much as digits as its factorization.

130912216397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19990098.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 130912216397 in words is "one hundred thirty billion, nine hundred twelve million, two hundred sixteen thousand, three hundred ninety-seven".

Divisors: 1 6551 19983547 130912216397