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130040029 = 718577147
BaseRepresentation
bin1111100000001…
…00000011011101
3100001200201101101
413300010003131
5231242240104
620523113101
73136215310
oct760040335
9301621341
10130040029
1167449aa9
1237672791
1320c30a82
14133b0977
15b63a5a4
hex7c040dd

130040029 has 4 divisors (see below), whose sum is σ = 148617184. Its totient is φ = 111462876.

The previous prime is 130040017. The next prime is 130040033. The reversal of 130040029 is 920040031.

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 not a de Polignac number, because 130040029 - 29 = 130039517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130039988 and 130040015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130040039) 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, 9288567 + ... + 9288580.

It is an arithmetic number, because the mean of its divisors is an integer number (37154296).

Almost surely, 2130040029 is an apocalyptic number.

It is an amenable number.

130040029 is a deficient number, since it is larger than the sum of its proper divisors (18577155).

130040029 is an equidigital number, since it uses as much as digits as its factorization.

130040029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18577154.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 130040029 is about 11403.5095036572. The cubic root of 130040029 is about 506.6316911356.

The spelling of 130040029 in words is "one hundred thirty million, forty thousand, twenty-nine".

Divisors: 1 7 18577147 130040029