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38085800638 = 21712726932789
BaseRepresentation
bin100011011110000101…
…110011001010111110
310122022021011010121211
4203132011303022332
51110444431110023
625255114515034
72515541651434
oct433605631276
9118267133554
1038085800638
11151744947a6
12746aa35a7a
13378c619912
141bb4288d54
15ecd921a0d
hex8de1732be

38085800638 has 32 divisors (see below), whose sum is σ = 61194009600. Its totient is φ = 17714962944.

The previous prime is 38085800611. The next prime is 38085800651. The reversal of 38085800638 is 83600858083.

It is a junction number, because it is equal to n+sod(n) for n = 38085800591 and 38085800600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1145148 + ... + 1177936.

It is an arithmetic number, because the mean of its divisors is an integer number (1912312800).

Almost surely, 238085800638 is an apocalyptic number.

38085800638 is a deficient number, since it is larger than the sum of its proper divisors (23108208962).

38085800638 is a wasteful number, since it uses less digits than its factorization.

38085800638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33204.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 38085800638 in words is "thirty-eight billion, eighty-five million, eight hundred thousand, six hundred thirty-eight".

Divisors: 1 2 17 34 127 254 269 538 2159 4318 4573 9146 32789 34163 65578 68326 557413 580771 1114826 1161542 4164203 8328406 8820241 17640482 70791451 141582902 149944097 299888194 1120170607 2240341214 19042900319 38085800638