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398160000000 = 2103257779
BaseRepresentation
bin1011100101101000010…
…11110111010000000000
31102001201110021200111200
411302310023313100000
523010412430000000
6502525010341200
740523530105350
oct5626413672000
91361643250450
10398160000000
11143949a38144
12651bab8a800
132b714384749
14153b1a76b60
15a5550dd500
hex5cb42f7400

398160000000 has 1056 divisors, whose sum is σ = 1663183242240. Its totient is φ = 89856000000.

The previous prime is 398159999971. The next prime is 398160000011. The reversal of 398160000000 is 61893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5039999961 + ... + 5040000039.

Almost surely, 2398160000000 is an apocalyptic number.

398160000000 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 398160000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831591621120).

398160000000 is an abundant number, since it is smaller than the sum of its proper divisors (1265023242240).

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

398160000000 is an frugal number, since it uses more digits than its factorization.

398160000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 398160000000 its reverse (61893), we get a palindrome (398160061893).

The spelling of 398160000000 in words is "three hundred ninety-eight billion, one hundred sixty million", and thus it is an aban number.