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23280009985 = 529160551793
BaseRepresentation
bin10101101011100110…
…001100001100000001
32020002102110001002001
4111223212030030001
5340134140304420
614410015224001
71452620551141
oct255346141401
966072401061
1023280009985
119966a60081
124618518001
1322700ab24b
1411abb7a921
15913bc0b0a
hex56b98c301

23280009985 has 8 divisors (see below), whose sum is σ = 28899322920. Its totient is φ = 17981800704.

The previous prime is 23280009971. The next prime is 23280010003. The reversal of 23280009985 is 58990008232.

It can be written as a sum of positive squares in 4 ways, for example, as 730783089 + 22549226896 = 27033^2 + 150164^2 .

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 23280009985 - 217 = 23279878913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80275752 + ... + 80276041.

It is an arithmetic number, because the mean of its divisors is an integer number (3612415365).

Almost surely, 223280009985 is an apocalyptic number.

It is an amenable number.

23280009985 is a deficient number, since it is larger than the sum of its proper divisors (5619312935).

23280009985 is a wasteful number, since it uses less digits than its factorization.

23280009985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160551827.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 23280009985 in words is "twenty-three billion, two hundred eighty million, nine thousand, nine hundred eighty-five".

Divisors: 1 5 29 145 160551793 802758965 4656001997 23280009985