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38752009138 = 2181271939371
BaseRepresentation
bin100100000101110011…
…001011101110110010
310201000200202000212201
4210011303023232302
51113331003243023
625445154013414
72541211433323
oct440563135662
9121020660781
1038752009138
1115486554037
127615b7726a
13386765732b
141c3894844a
15101c16bbad
hex905ccbbb2

38752009138 has 16 divisors (see below), whose sum is σ = 58472144640. Its totient is φ = 19261378800.

The previous prime is 38752009129. The next prime is 38752009139. The reversal of 38752009138 is 83190025783.

38752009138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38752009139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964593 + ... + 1003963.

It is an arithmetic number, because the mean of its divisors is an integer number (3654509040).

Almost surely, 238752009138 is an apocalyptic number.

38752009138 is a deficient number, since it is larger than the sum of its proper divisors (19720135502).

38752009138 is a wasteful number, since it uses less digits than its factorization.

38752009138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42273.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 38752009138 in words is "thirty-eight billion, seven hundred fifty-two million, nine thousand, one hundred thirty-eight".

Divisors: 1 2 181 362 2719 5438 39371 78742 492139 984278 7126151 14252302 107049749 214099498 19376004569 38752009138