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3878953089380 = 2251745724964301
BaseRepresentation
bin111000011100100011100…
…111101111100101100100
3111201211020220120112001022
4320130203213233211210
51002023043442330010
612125544430350312
7550150034150135
oct70344347574544
914654226515038
103878953089380
111266066993066
1252792565b398
13221a25a5b035
14d5a56d57c8c
156ad79158d55
hex387239ef964

3878953089380 has 48 divisors (see below), whose sum is σ = 8643839638896. Its totient is φ = 1457116262400.

The previous prime is 3878953089311. The next prime is 3878953089457. The reversal of 3878953089380 is 839803598783.

It can be written as a sum of positive squares in 8 ways, for example, as 156646557796 + 3722306531584 = 395786^2 + 1929328^2 .

It is a super-2 number, since 2×38789530893802 (a number of 26 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 12326771 + ... + 12637530.

It is an arithmetic number, because the mean of its divisors is an integer number (180079992477).

Almost surely, 23878953089380 is an apocalyptic number.

It is an amenable number.

3878953089380 is an abundant number, since it is smaller than the sum of its proper divisors (4764886549516).

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

3878953089380 is a wasteful number, since it uses less digits than its factorization.

3878953089380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24964784 (or 24964782 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 71.

The spelling of 3878953089380 in words is "three trillion, eight hundred seventy-eight billion, nine hundred fifty-three million, eighty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 457 914 1828 2285 4570 7769 9140 15538 31076 38845 77690 155380 24964301 49928602 99857204 124821505 249643010 424393117 499286020 848786234 1697572468 2121965585 4243931170 8487862340 11408685557 22817371114 45634742228 57043427785 114086855570 193947654469 228173711140 387895308938 775790617876 969738272345 1939476544690 3878953089380