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130718978155 = 526143795631
BaseRepresentation
bin111100110111101110…
…1010101000001101011
3110111102000211010020101
41321233131111001223
54120203024300110
6140015041210231
712305223660403
oct1715735250153
9414360733211
10130718978155
115048a501057
1221401630977
13c432b2a1ac
146480b83803
15360103413a
hex1e6f75506b

130718978155 has 4 divisors (see below), whose sum is σ = 156862773792. Its totient is φ = 104575182520.

The previous prime is 130718978153. The next prime is 130718978167. The reversal of 130718978155 is 551879817031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 130718978155 - 21 = 130718978153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130718978096 and 130718978105.

It is not an unprimeable number, because it can be changed into a prime (130718978153) 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, 13071897811 + ... + 13071897820.

It is an arithmetic number, because the mean of its divisors is an integer number (39215693448).

Almost surely, 2130718978155 is an apocalyptic number.

130718978155 is a deficient number, since it is larger than the sum of its proper divisors (26143795637).

130718978155 is an equidigital number, since it uses as much as digits as its factorization.

130718978155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26143795636.

The product of its (nonzero) digits is 2116800, while the sum is 55.

The spelling of 130718978155 in words is "one hundred thirty billion, seven hundred eighteen million, nine hundred seventy-eight thousand, one hundred fifty-five".

Divisors: 1 5 26143795631 130718978155