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10487207808 = 273371139409
BaseRepresentation
bin10011100010001011…
…00001011110000000
31000001212112100121000
421301011201132000
5132434211122213
64452345132000
7520611536610
oct116105413600
930055470530
1010487207808
1144a18344a0
12204818a000
13cb1913b0c
14716b48a40
15415a4ac73
hex271161780

10487207808 has 256 divisors, whose sum is σ = 38590272000. Its totient is φ = 2723880960.

The previous prime is 10487207803. The next prime is 10487207821. The reversal of 10487207808 is 80870278401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10487207803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246408 + ... + 285816.

It is an arithmetic number, because the mean of its divisors is an integer number (150743250).

Almost surely, 210487207808 is an apocalyptic number.

10487207808 is a gapful number since it is divisible by the number (18) 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 10487207808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19295136000).

10487207808 is an abundant number, since it is smaller than the sum of its proper divisors (28103064192).

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

10487207808 is a wasteful number, since it uses less digits than its factorization.

10487207808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39450 (or 39432 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The spelling of 10487207808 in words is "ten billion, four hundred eighty-seven million, two hundred seven thousand, eight hundred eight".