Search a number
-
+
215408611047168 = 28327111963905209
BaseRepresentation
bin110000111110100110111001…
…101111100011011100000000
31001020200212021110202022211200
4300332212321233203130000
5211213223313412002133
62042045203315541200
763241521122225130
oct6076467157433400
91036625243668750
10215408611047168
11626aa308277430
12201ab76bbba800
139326c38b25a76
143b29b92186ac0
1519d8414098913
hexc3e9b9be3700

215408611047168 has 432 divisors, whose sum is σ = 815082835257600. Its totient is φ = 53005535723520.

The previous prime is 215408611047121. The next prime is 215408611047193. The reversal of 215408611047168 is 861740116804512.

215408611047168 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 0 + 8 + 611 + 0 + 4 + 7 + 16 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28581853 + ... + 35323356.

Almost surely, 2215408611047168 is an apocalyptic number.

215408611047168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

215408611047168 is an abundant number, since it is smaller than the sum of its proper divisors (599674224210432).

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

215408611047168 is a wasteful number, since it uses less digits than its factorization.

215408611047168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63905268 (or 63905251 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 215408611047168 in words is "two hundred fifteen trillion, four hundred eight billion, six hundred eleven million, forty-seven thousand, one hundred sixty-eight".