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38093744687 = 1723297346021
BaseRepresentation
bin100011011110100100…
…000110101000101111
310122022211002201210212
4203132210012220233
51111003444312222
625300001053035
72515666326065
oct433644065057
9118284081725
1038093744687
1115178a20229
12747162717b
13379116b73b
141bb5356035
15ece4906e2
hex8de906a2f

38093744687 has 32 divisors (see below), whose sum is σ = 44136938880. Its totient is φ = 32657264640.

The previous prime is 38093744681. The next prime is 38093744699. The reversal of 38093744687 is 78644739083.

38093744687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38093744687 - 24 = 38093744671 is a prime.

It is a super-2 number, since 2×380937446872 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38093744681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 804737 + ... + 850757.

It is an arithmetic number, because the mean of its divisors is an integer number (1379279340).

Almost surely, 238093744687 is an apocalyptic number.

38093744687 is a deficient number, since it is larger than the sum of its proper divisors (6043194193).

38093744687 is a wasteful number, since it uses less digits than its factorization.

38093744687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46163.

The product of its (nonzero) digits is 24385536, while the sum is 59.

The spelling of 38093744687 in words is "thirty-eight billion, ninety-three million, seven hundred forty-four thousand, six hundred eighty-seven".

Divisors: 1 17 23 29 73 391 493 667 1241 1679 2117 11339 28543 35989 46021 48691 782357 827747 1058483 1334609 3359533 17994211 22688353 30696007 57112061 77269259 97426457 521832119 1313577403 1656249769 2240808511 38093744687