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205272492480 = 263251124783151
BaseRepresentation
bin1011111100101100110…
…0011010100111000000
3201121211210102001110200
42333023030122213000
511330344224224410
6234144553525200
720554562253126
oct2771314324700
9647753361420
10205272492480
117a067a74900
1233949413800
1316484767203
149d14435916
1555162a43c0
hex2fcb31a9c0

205272492480 has 1008 divisors, whose sum is σ = 807447094272. Its totient is φ = 47798784000.

The previous prime is 205272492473. The next prime is 205272492497. The reversal of 205272492480 is 84294272502.

205272492480 is a `hidden beast` number, since 2 + 0 + 52 + 72 + 492 + 48 + 0 = 666.

205272492480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 143 ways as a sum of consecutive naturals, for example, 1359420405 + ... + 1359420555.

It is an arithmetic number, because the mean of its divisors is an integer number (801038784).

Almost surely, 2205272492480 is an apocalyptic number.

205272492480 is a gapful number since it is divisible by the number (20) 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 205272492480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403723547136).

205272492480 is an abundant number, since it is smaller than the sum of its proper divisors (602174601792).

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

205272492480 is a wasteful number, since it uses less digits than its factorization.

205272492480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 205272492480 in words is "two hundred five billion, two hundred seventy-two million, four hundred ninety-two thousand, four hundred eighty".