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130706019 = 32101143791
BaseRepresentation
bin1111100101001…
…10101001100011
3100002221112221200
413302212221203
5231430043034
620545252243
73144661053
oct762465143
9302845850
10130706019
1167864404
1237934083
1321104c52
1413505563
15b71ca99
hex7ca6a63

130706019 has 12 divisors (see below), whose sum is σ = 190668192. Its totient is φ = 86274000.

The previous prime is 130706011. The next prime is 130706021. The reversal of 130706019 is 910607031.

It is not a de Polignac number, because 130706019 - 23 = 130706011 is a prime.

It is a super-2 number, since 2×1307060192 = 34168126805656722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130705983 and 130706001.

It is not an unprimeable number, because it can be changed into a prime (130706011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70987 + ... + 72804.

It is an arithmetic number, because the mean of its divisors is an integer number (15889016).

Almost surely, 2130706019 is an apocalyptic number.

130706019 is a deficient number, since it is larger than the sum of its proper divisors (59962173).

130706019 is a wasteful number, since it uses less digits than its factorization.

130706019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143898 (or 143895 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 130706019 is about 11432.6733094233. The cubic root of 130706019 is about 507.4951105679.

The spelling of 130706019 in words is "one hundred thirty million, seven hundred six thousand, nineteen".

Divisors: 1 3 9 101 303 909 143791 431373 1294119 14522891 43568673 130706019