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38112728 = 2329164279
BaseRepresentation
bin1001000101100…
…0110111011000
32122201022211112
42101120313120
534224101403
63440515452
7641644553
oct221306730
978638745
1038112728
111a571725
121091bb88
137b85814
1450c169a
15352c9d8
hex2458dd8

38112728 has 16 divisors (see below), whose sum is σ = 73926000. Its totient is φ = 18399136.

The previous prime is 38112677. The next prime is 38112743. The reversal of 38112728 is 82721183.

It is a junction number, because it is equal to n+sod(n) for n = 38112694 and 38112703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81908 + ... + 82371.

It is an arithmetic number, because the mean of its divisors is an integer number (4620375).

Almost surely, 238112728 is an apocalyptic number.

It is an amenable number.

38112728 is a deficient number, since it is larger than the sum of its proper divisors (35813272).

38112728 is a wasteful number, since it uses less digits than its factorization.

38112728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164314 (or 164310 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 38112728 is about 6173.5506801192. The cubic root of 38112728 is about 336.5296587676.

The spelling of 38112728 in words is "thirty-eight million, one hundred twelve thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 29 58 116 232 164279 328558 657116 1314232 4764091 9528182 19056364 38112728