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135871468348824 = 2333136194
BaseRepresentation
bin11110111001001100001010…
…100110110010010110011000
3122211002012000020120102222000
4132321030022212302112120
5120302104231344130244
61200550254005401000
740422250435206645
oct3671141246622630
9584065006512860
10135871468348824
113a3248477a277a
12132a4973a09160
135aa7817000000
14257a2dd906dcc
1510a94de564169
hex7b930a9b2598

135871468348824 has 560 divisors, whose sum is σ = 431587430473800. Its totient is φ = 39606257980224.

The previous prime is 135871468348787. The next prime is 135871468348909. The reversal of 135871468348824 is 428843864178531.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

135871468348824 is a `hidden beast` number, since 1 + 3 + 5 + 8 + 7 + 1 + 46 + 83 + 488 + 24 = 666.

It is a super-2 number, since 2×1358714683488242 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 135871468348824 = 64223 + 513763 = 288993 + 481653.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 139 ways as a sum of consecutive naturals, for example, 7151129913087 + ... + 7151129913105.

Almost surely, 2135871468348824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135871468348824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215793715236900).

135871468348824 is an abundant number, since it is smaller than the sum of its proper divisors (295715962124976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135871468348824 is an frugal number, since it uses more digits than its factorization.

135871468348824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 37 counting only the distinct ones).

The product of its digits is 990904320, while the sum is 72.

The spelling of 135871468348824 in words is "one hundred thirty-five trillion, eight hundred seventy-one billion, four hundred sixty-eight million, three hundred forty-eight thousand, eight hundred twenty-four".