Search a number
-
+
43215020530400 = 255217101241113049
BaseRepresentation
bin10011101001101110001111…
…11100101001101011100000
312200000022112002020222100202
421310313013330221223200
521131013330223433100
6231524412324004332
712050116331462465
oct1164670774515340
9180008462228322
1043215020530400
1112851429526834
124a1b43ab306a8
131b1620b2a0534
14a958922dd66c
154ee1c64027d5
hex274dc7f29ae0

43215020530400 has 288 divisors, whose sum is σ = 112865896432800. Its totient is φ = 16100188160000.

The previous prime is 43215020530379. The next prime is 43215020530427. The reversal of 43215020530400 is 403502051234.

It is a happy number.

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, 3311743076 + ... + 3311756124.

It is an arithmetic number, because the mean of its divisors is an integer number (391895473725).

Almost surely, 243215020530400 is an apocalyptic number.

43215020530400 is a gapful number since it is divisible by the number (40) 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 43215020530400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56432948216400).

43215020530400 is an abundant number, since it is smaller than the sum of its proper divisors (69650875902400).

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

43215020530400 is a wasteful number, since it uses less digits than its factorization.

43215020530400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15598 (or 15585 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 43215020530400 its reverse (403502051234), we get a palindrome (43618522581634).

The spelling of 43215020530400 in words is "forty-three trillion, two hundred fifteen billion, twenty million, five hundred thirty thousand, four hundred".