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34021334520 = 233251992391987
BaseRepresentation
bin11111101011110101…
…000101110111111000
310020211000010212021200
4133223311011313320
51024133430201040
623343523134200
72313036400125
oct375365056770
9106730125250
1034021334520
111347917a198
126715814360
133292546494
14190a55374c
15d41bb5630
hex7ebd45df8

34021334520 has 192 divisors, whose sum is σ = 111646080000. Its totient is φ = 8984473344.

The previous prime is 34021334497. The next prime is 34021334521. The reversal of 34021334520 is 2543312043.

34021334520 is a `hidden beast` number, since 3 + 4 + 0 + 2 + 133 + 4 + 520 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34021334521) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 17120967 + ... + 17122953.

It is an arithmetic number, because the mean of its divisors is an integer number (581490000).

Almost surely, 234021334520 is an apocalyptic number.

34021334520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34021334520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55823040000).

34021334520 is an abundant number, since it is smaller than the sum of its proper divisors (77624745480).

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

34021334520 is a wasteful number, since it uses less digits than its factorization.

34021334520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 34021334520 its reverse (2543312043), we get a palindrome (36564646563).

The spelling of 34021334520 in words is "thirty-four billion, twenty-one million, three hundred thirty-four thousand, five hundred twenty".