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215325233040 = 2435897188471
BaseRepresentation
bin1100100010001001100…
…0100100111110010000
3202120210101102012001010
43020202120210332100
512011441224424130
6242530303010520
721361650165501
oct3104230447620
9676711365033
10215325233040
1183356531655
1235893b99a40
13173c735c2c8
14a5c95a6ba8
155903ace0b0
hex3222624f90

215325233040 has 40 divisors (see below), whose sum is σ = 667508223168. Its totient is φ = 57420062080.

The previous prime is 215325233021. The next prime is 215325233047. The reversal of 215325233040 is 40332523512.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 215325232989 and 215325233007.

It is not an unprimeable number, because it can be changed into a prime (215325233047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448593996 + ... + 448594475.

Almost surely, 2215325233040 is an apocalyptic number.

215325233040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215325233040 is an abundant number, since it is smaller than the sum of its proper divisors (452182990128).

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

215325233040 is a wasteful number, since it uses less digits than its factorization.

215325233040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897188487 (or 897188481 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 215325233040 its reverse (40332523512), we get a palindrome (255657756552).

The spelling of 215325233040 in words is "two hundred fifteen billion, three hundred twenty-five million, two hundred thirty-three thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 897188471 1794376942 2691565413 3588753884 4485942355 5383130826 7177507768 8971884710 10766261652 13457827065 14355015536 17943769420 21532523304 26915654130 35887538840 43065046608 53831308260 71775077680 107662616520 215325233040