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38699948918 = 2409413311447
BaseRepresentation
bin100100000010101100…
…100101101101110110
310200220001210002200102
4210002230211231312
51113224141331133
625440054114102
72540010065261
oct440254455566
9120801702612
1038699948918
111545a126464
12760064b932
13385992a277
141c31a75cd8
1510177d67e8
hex902b25b76

38699948918 has 16 divisors (see below), whose sum is σ = 58211019360. Its totient is φ = 19296307776.

The previous prime is 38699948887. The next prime is 38699948929. The reversal of 38699948918 is 81984999683.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3375071 + ... + 3386517.

It is an arithmetic number, because the mean of its divisors is an integer number (3638188710).

Almost surely, 238699948918 is an apocalyptic number.

38699948918 is a deficient number, since it is larger than the sum of its proper divisors (19511070442).

38699948918 is a wasteful number, since it uses less digits than its factorization.

38699948918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15991.

The product of its digits is 241864704, while the sum is 74.

The spelling of 38699948918 in words is "thirty-eight billion, six hundred ninety-nine million, nine hundred forty-eight thousand, nine hundred eighteen".

Divisors: 1 2 409 818 4133 8266 11447 22894 1690397 3380794 4681823 9363646 47310451 94620902 19349974459 38699948918