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38906006223 = 372264666709
BaseRepresentation
bin100100001110111110…
…101000101011001111
310201102102111220011110
4210032332220223033
51114134414144343
625512334423103
72545061411400
oct441676505317
9121372456143
1038906006223
1115555476357
127659661a93
133890525676
141c511939a7
15102a93a833
hex90efa8acf

38906006223 has 12 divisors (see below), whose sum is σ = 60344009880. Its totient is φ = 22232003472.

The previous prime is 38906006219. The next prime is 38906006257. The reversal of 38906006223 is 32260060983.

It is not a de Polignac number, because 38906006223 - 22 = 38906006219 is a prime.

It is a super-2 number, since 2×389060062232 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38906006723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132333208 + ... + 132333501.

It is an arithmetic number, because the mean of its divisors is an integer number (5028667490).

Almost surely, 238906006223 is an apocalyptic number.

38906006223 is a deficient number, since it is larger than the sum of its proper divisors (21438003657).

38906006223 is a wasteful number, since it uses less digits than its factorization.

38906006223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264666726 (or 264666719 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 38906006223 in words is "thirty-eight billion, nine hundred six million, six thousand, two hundred twenty-three".

Divisors: 1 3 7 21 49 147 264666709 794000127 1852666963 5558000889 12968668741 38906006223