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130612006105 = 5721493577921
BaseRepresentation
bin111100110100100010…
…1010000110011011001
3110111010120112101011121
41321221011100303121
54114443133143410
6140000300325241
712302454506500
oct1715105206331
9414116471147
10130612006105
11504350883a9
1221391843821
13c416915119
146470899837
1535e69539da
hex1e69150cd9

130612006105 has 24 divisors (see below), whose sum is σ = 183547398600. Its totient is φ = 88961402880.

The previous prime is 130612006081. The next prime is 130612006121. The reversal of 130612006105 is 501600216031.

It can be written as a sum of positive squares in 4 ways, for example, as 8214884496 + 122397121609 = 90636^2 + 349853^2 .

It is not a de Polignac number, because 130612006105 - 27 = 130612005977 is a prime.

It is a super-2 number, since 2×1306120061052 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130612006105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1752456 + ... + 1825465.

It is an arithmetic number, because the mean of its divisors is an integer number (7647808275).

Almost surely, 2130612006105 is an apocalyptic number.

It is an amenable number.

130612006105 is a deficient number, since it is larger than the sum of its proper divisors (52935392495).

130612006105 is a wasteful number, since it uses less digits than its factorization.

130612006105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578089 (or 3578082 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 130612006105 in words is "one hundred thirty billion, six hundred twelve million, six thousand, one hundred five".

Divisors: 1 5 7 35 49 149 245 745 1043 5215 7301 36505 3577921 17889605 25045447 125227235 175318129 533110229 876590645 2665551145 3731771603 18658858015 26122401221 130612006105