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38678071437 = 329377458309
BaseRepresentation
bin100100000001011001…
…001000100010001101
310200211112121121102100
4210001121020202031
51113203041241222
625433553145313
72536323116445
oct440131104215
9120745547370
1038678071437
11154488435a5
1275b525b239
13385523a405
141c2cbbd125
1510159144ac
hex90164888d

38678071437 has 12 divisors (see below), whose sum is σ = 55874405340. Its totient is φ = 25782574848.

The previous prime is 38678071433. The next prime is 38678071469. The reversal of 38678071437 is 73417087683.

38678071437 is a `hidden beast` number, since 3 + 8 + 67 + 80 + 71 + 437 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20304540036 + 18373531401 = 142494^2 + 135549^2 .

It is not a de Polignac number, because 38678071437 - 22 = 38678071433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38678071433) 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, 144762 + ... + 313547.

It is an arithmetic number, because the mean of its divisors is an integer number (4656200445).

Almost surely, 238678071437 is an apocalyptic number.

It is an amenable number.

38678071437 is a deficient number, since it is larger than the sum of its proper divisors (17196333903).

38678071437 is a wasteful number, since it uses less digits than its factorization.

38678071437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467692 (or 467689 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 38678071437 in words is "thirty-eight billion, six hundred seventy-eight million, seventy-one thousand, four hundred thirty-seven".

Divisors: 1 3 9 9377 28131 84393 458309 1374927 4124781 4297563493 12892690479 38678071437