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10002521087 = 131341757347
BaseRepresentation
bin10010101000011001…
…00101101111111111
3221211002111201101222
421110030211233333
5130441121133322
64332312423555
7502605012026
oct112414455777
927732451358
1010002521087
114273187159
121b319a7bbb
13c35390b40
146ac61b8bd
153d8209e42
hex254325bff

10002521087 has 8 divisors (see below), whose sum is σ = 10772936496. Its totient is φ = 9232247232.

The previous prime is 10002521077. The next prime is 10002521119. The reversal of 10002521087 is 78012520001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10002521087 - 24 = 10002521071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002521057) 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, 145748 + ... + 203094.

It is an arithmetic number, because the mean of its divisors is an integer number (1346617062).

Almost surely, 210002521087 is an apocalyptic number.

10002521087 is a deficient number, since it is larger than the sum of its proper divisors (770415409).

10002521087 is a wasteful number, since it uses less digits than its factorization.

10002521087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70777.

The product of its (nonzero) digits is 1120, while the sum is 26.

The spelling of 10002521087 in words is "ten billion, two million, five hundred twenty-one thousand, eighty-seven".

Divisors: 1 13 13417 57347 174421 745511 769424699 10002521087