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745004213824 = 261319212719531
BaseRepresentation
bin10101101011101011011…
…01100010011001000000
32122012222121212100002011
422311311231202121000
544201232034320244
61330130013502304
7104552620222003
oct12656555423100
92565877770064
10745004213824
11267a55502642
121004784a1994
135533b1c5070
14280b634d53a
15145a5079434
hexad75b62640

745004213824 has 168 divisors, whose sum is σ = 1693610032128. Its totient is φ = 323169315840.

The previous prime is 745004213809. The next prime is 745004213911. The reversal of 745004213824 is 428312400547.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 38134939 + ... + 38154469.

It is an arithmetic number, because the mean of its divisors is an integer number (10081012096).

Almost surely, 2745004213824 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 745004213824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846805016064).

745004213824 is an abundant number, since it is smaller than the sum of its proper divisors (948605818304).

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

745004213824 is a wasteful number, since it uses less digits than its factorization.

745004213824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19721 (or 19692 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 745004213824 in words is "seven hundred forty-five billion, four million, two hundred thirteen thousand, eight hundred twenty-four".