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38737682969 = 363110668599
BaseRepresentation
bin100100000100111100…
…100010001000011001
310200222200210012001212
4210010330202020121
51113313321323334
625443522552505
72540645605136
oct440474421031
9120880705055
1038737682969
1115479459627
127611208735
1338646ac5cb
141c36a9958d
15101ac8bece
hex904f22219

38737682969 has 4 divisors (see below), whose sum is σ = 38748355200. Its totient is φ = 38727010740.

The previous prime is 38737682939. The next prime is 38737682989. The reversal of 38737682969 is 96928673783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96928673783 = 587165125509.

It is a cyclic number.

It is not a de Polignac number, because 38737682969 - 228 = 38469247513 is a prime.

It is a super-2 number, since 2×387376829692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38737682899 and 38737682908.

It is not an unprimeable number, because it can be changed into a prime (38737682939) 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 3 ways as a sum of consecutive naturals, for example, 5330669 + ... + 5337930.

It is an arithmetic number, because the mean of its divisors is an integer number (9687088800).

Almost surely, 238737682969 is an apocalyptic number.

It is an amenable number.

38737682969 is a deficient number, since it is larger than the sum of its proper divisors (10672231).

38737682969 is a wasteful number, since it uses less digits than its factorization.

38737682969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10672230.

The product of its digits is 164602368, while the sum is 68.

The spelling of 38737682969 in words is "thirty-eight billion, seven hundred thirty-seven million, six hundred eighty-two thousand, nine hundred sixty-nine".

Divisors: 1 3631 10668599 38737682969