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130797597889 = 718685371127
BaseRepresentation
bin111100111010000100…
…1001111010011000001
3110111121111202102020101
41321310021033103001
54120333141113024
6140030530242401
712310200144430
oct1716411172301
9414544672211
10130797597889
115051a91a242
1221423a26401
13c4461c624a
14648b3ab117
153607db3c44
hex1e7424f4c1

130797597889 has 4 divisors (see below), whose sum is σ = 149482969024. Its totient is φ = 112112226756.

The previous prime is 130797597871. The next prime is 130797597893. The reversal of 130797597889 is 988795797031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 988795797031 = 7141256542433.

It is a cyclic number.

It is not a de Polignac number, because 130797597889 - 29 = 130797597377 is a prime.

It is a super-2 number, since 2×1307975978892 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130797597829) 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, 9342685557 + ... + 9342685570.

It is an arithmetic number, because the mean of its divisors is an integer number (37370742256).

Almost surely, 2130797597889 is an apocalyptic number.

It is an amenable number.

130797597889 is a deficient number, since it is larger than the sum of its proper divisors (18685371135).

130797597889 is an equidigital number, since it uses as much as digits as its factorization.

130797597889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18685371134.

The product of its (nonzero) digits is 240045120, while the sum is 73.

The spelling of 130797597889 in words is "one hundred thirty billion, seven hundred ninety-seven million, five hundred ninety-seven thousand, eight hundred eighty-nine".

Divisors: 1 7 18685371127 130797597889