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8140212000 = 2532531747283
BaseRepresentation
bin1111001010011000…
…11100011100100000
3210000022020121121100
413211030130130200
5113132343241000
63423424554400
7405502442334
oct74514343440
923008217540
108140212000
1134a7a34838
1216b2182a00
139c95c5abb
145731657c4
15329994a00
hex1e531c720

8140212000 has 576 divisors, whose sum is σ = 31350219264. Its totient is φ = 1992499200.

The previous prime is 8140211999. The next prime is 8140212011. The reversal of 8140212000 is 2120418.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28763859 + ... + 28764141.

It is an arithmetic number, because the mean of its divisors is an integer number (54427464).

Almost surely, 28140212000 is an apocalyptic number.

8140212000 is a gapful number since it is divisible by the number (80) 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 8140212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15675109632).

8140212000 is an abundant number, since it is smaller than the sum of its proper divisors (23210007264).

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

8140212000 is a wasteful number, since it uses less digits than its factorization.

8140212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 8140212000 is about 90223.1234218812. The cubic root of 8140212000 is about 2011.6167285045.

Adding to 8140212000 its reverse (2120418), we get a palindrome (8142332418).

The spelling of 8140212000 in words is "eight billion, one hundred forty million, two hundred twelve thousand".