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2638803009 = 34121453683
BaseRepresentation
bin1001110101001000…
…1111000001000001
320210220101002012210
42131102033001001
520401013144014
61113502412333
7122251312143
oct23522170101
96726332183
102638803009
111134598837
126178910a9
1333090a9cb
141b0662c93
151069e7859
hex9d48f041

2638803009 has 8 divisors (see below), whose sum is σ = 3604218912. Its totient is φ = 1716294560.

The previous prime is 2638802993. The next prime is 2638803017. The reversal of 2638803009 is 9003088362.

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 2638803009 - 24 = 2638802993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2638803029) 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 7 ways as a sum of consecutive naturals, for example, 10726719 + ... + 10726964.

It is an arithmetic number, because the mean of its divisors is an integer number (450527364).

Almost surely, 22638803009 is an apocalyptic number.

It is an amenable number.

2638803009 is a deficient number, since it is larger than the sum of its proper divisors (965415903).

2638803009 is a wasteful number, since it uses less digits than its factorization.

2638803009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21453727.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 2638803009 is about 51369.2807911499. The cubic root of 2638803009 is about 1381.8757327478.

The spelling of 2638803009 in words is "two billion, six hundred thirty-eight million, eight hundred three thousand, nine".

Divisors: 1 3 41 123 21453683 64361049 879601003 2638803009