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243000047680 = 26513532514391
BaseRepresentation
bin1110001001001111101…
…1100111100001000000
3212020020002110102201221
43202103323213201000
512440131003011210
6303344354204424
723361524216335
oct3422373474100
9766202412657
10243000047680
1194068212495
123b118283714
1319bb7aa1880
14ba92ca898c
1564c350e1da
hex3893ee7840

243000047680 has 224 divisors, whose sum is σ = 637587272448. Its totient is φ = 87659520000.

The previous prime is 243000047659. The next prime is 243000047683. The reversal of 243000047680 is 86740000342.

It is not an unprimeable number, because it can be changed into a prime (243000047683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55338285 + ... + 55342675.

It is an arithmetic number, because the mean of its divisors is an integer number (2846371752).

Almost surely, 2243000047680 is an apocalyptic number.

243000047680 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 243000047680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318793636224).

243000047680 is an abundant number, since it is smaller than the sum of its proper divisors (394587224768).

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

243000047680 is a wasteful number, since it uses less digits than its factorization.

243000047680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4725 (or 4715 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 243000047680 in words is "two hundred forty-three billion, forty-seven thousand, six hundred eighty".