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38705709799 = 198324543887
BaseRepresentation
bin100100000011000010…
…100100001011100111
310200220110121210010101
4210003002210023213
51113232130203144
625440421404531
72540110050661
oct440302441347
9120813553111
1038705709799
1115462400719
127602569747
13385ab96483
141c32735531
1510180736d4
hex9030a42e7

38705709799 has 8 divisors (see below), whose sum is σ = 41233731840. Its totient is φ = 36226775736.

The previous prime is 38705709743. The next prime is 38705709811. The reversal of 38705709799 is 99790750783.

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 38705709799 - 211 = 38705707751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38705709799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38705709709) 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, 12270367 + ... + 12273520.

It is an arithmetic number, because the mean of its divisors is an integer number (5154216480).

Almost surely, 238705709799 is an apocalyptic number.

38705709799 is a deficient number, since it is larger than the sum of its proper divisors (2528022041).

38705709799 is a wasteful number, since it uses less digits than its factorization.

38705709799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24543989.

The product of its (nonzero) digits is 30005640, while the sum is 64.

The spelling of 38705709799 in words is "thirty-eight billion, seven hundred five million, seven hundred nine thousand, seven hundred ninety-nine".

Divisors: 1 19 83 1577 24543887 466333853 2037142621 38705709799