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117431403409 = 134878707007
BaseRepresentation
bin110110101011101110…
…1010000001110010001
3102020002222220101101101
41231113131100032101
53410444414402114
6125540334304401
711325026313415
oct1552735201621
9366088811341
10117431403409
1145890a69521
121a913658101
13b0c5cbb128
14598015ad45
1530c4729d74
hex1b57750391

117431403409 has 4 divisors (see below), whose sum is σ = 117440123904. Its totient is φ = 117422682916.

The previous prime is 117431403391. The next prime is 117431403413. The reversal of 117431403409 is 904304134711.

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: 904304134711 = 3532561768087.

It is a cyclic number.

It is not a de Polignac number, because 117431403409 - 29 = 117431402897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117431403449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4340017 + ... + 4366990.

It is an arithmetic number, because the mean of its divisors is an integer number (29360030976).

Almost surely, 2117431403409 is an apocalyptic number.

It is an amenable number.

117431403409 is a deficient number, since it is larger than the sum of its proper divisors (8720495).

117431403409 is an equidigital number, since it uses as much as digits as its factorization.

117431403409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8720494.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 117431403409 in words is "one hundred seventeen billion, four hundred thirty-one million, four hundred three thousand, four hundred nine".

Divisors: 1 13487 8707007 117431403409