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10247393509 = 73330114643
BaseRepresentation
bin10011000101100101…
…01101000011100101
3222110011021112012221
421202302231003211
5131441313043014
64412501112341
7511640256553
oct114262550345
928404245187
1010247393509
114389428461
121b9b9b86b1
13c74029672
146d2d60bd3
153ee979b24
hex262cad0e5

10247393509 has 8 divisors (see below), whose sum is σ = 10266992352. Its totient is φ = 10227811440.

The previous prime is 10247393489. The next prime is 10247393539. The reversal of 10247393509 is 90539374201.

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

It is a cyclic number.

It is not a de Polignac number, because 10247393509 - 27 = 10247393381 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 (10247393539) 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, 2204742 + ... + 2209384.

It is an arithmetic number, because the mean of its divisors is an integer number (1283374044).

Almost surely, 210247393509 is an apocalyptic number.

It is an amenable number.

10247393509 is a deficient number, since it is larger than the sum of its proper divisors (19598843).

10247393509 is an equidigital number, since it uses as much as digits as its factorization.

10247393509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8387.

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 10247393509 in words is "ten billion, two hundred forty-seven million, three hundred ninety-three thousand, five hundred nine".

Divisors: 1 733 3011 4643 2207063 3403319 13980073 10247393509