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117243456481 = 4571489172297
BaseRepresentation
bin110110100110001000…
…0010010101111100001
3102012121220020200200001
41231030100102233201
53410103311101411
6125505542100001
711320254636244
oct1551420225741
9365556220601
10117243456481
11457a4969188
121a88071a601
13b096094028
1459631d525b
1530b2ea1dc1
hex1b4c412be1

117243456481 has 8 divisors (see below), whose sum is σ = 117579601160. Its totient is φ = 116907660288.

The previous prime is 117243456433. The next prime is 117243456509. The reversal of 117243456481 is 184654342711.

It can be written as a sum of positive squares in 4 ways, for example, as 433305856 + 116810150625 = 20816^2 + 341775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117243456481 - 225 = 117209902049 is a prime.

It is a super-2 number, since 2×1172434564812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117243456431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594325 + ... + 766621.

It is an arithmetic number, because the mean of its divisors is an integer number (14697450145).

Almost surely, 2117243456481 is an apocalyptic number.

It is an amenable number.

117243456481 is a deficient number, since it is larger than the sum of its proper divisors (336144679).

117243456481 is a wasteful number, since it uses less digits than its factorization.

117243456481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174243.

The product of its digits is 645120, while the sum is 46.

The spelling of 117243456481 in words is "one hundred seventeen billion, two hundred forty-three million, four hundred fifty-six thousand, four hundred eighty-one".

Divisors: 1 457 1489 172297 680473 78739729 256550233 117243456481