Search a number
-
+
87932759040 = 21032574161109
BaseRepresentation
bin101000111100100110…
…0110110110000000000
322101222011222222122100
41101321030312300000
52420041241242130
6104221252110400
76232025055660
oct1217114666000
9271864888570
1087932759040
1134323828395
1215060605400
1383a4764189
14438253c1a0
152449b35c60
hex1479336c00

87932759040 has 1056 divisors, whose sum is σ = 365877832320. Its totient is φ = 19110297600.

The previous prime is 87932758997. The next prime is 87932759087. The reversal of 87932759040 is 4095723978.

87932759040 is a `hidden beast` number, since 8 + 7 + 9 + 3 + 2 + 7 + 590 + 40 = 666.

It is a super-2 number, since 2×879327590402 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 806722506 + ... + 806722614.

It is an arithmetic number, because the mean of its divisors is an integer number (346475220).

Almost surely, 287932759040 is an apocalyptic number.

87932759040 is a gapful number since it is divisible by the number (80) 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 87932759040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182938916160).

87932759040 is an abundant number, since it is smaller than the sum of its proper divisors (277945073280).

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

87932759040 is a wasteful number, since it uses less digits than its factorization.

87932759040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 87932759040 in words is "eighty-seven billion, nine hundred thirty-two million, seven hundred fifty-nine thousand, forty".