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38811192693 = 37213157277467
BaseRepresentation
bin100100001001010100…
…111100110101110101
310201011211002212110020
4210021110330311311
51113441131131233
625455110315353
72542530460200
oct441124746565
9121154085406
1038811192693
11155069a7569
127631958b59
1338769a97a0
141c42752937
15102245c9b3
hex90953cd75

38811192693 has 96 divisors (see below), whose sum is σ = 65616130944. Its totient is φ = 20224608768.

The previous prime is 38811192683. The next prime is 38811192697. The reversal of 38811192693 is 39629111883.

38811192693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38811192693 - 24 = 38811192677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38811192697) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 83107246 + ... + 83107712.

It is an arithmetic number, because the mean of its divisors is an integer number (683501364).

Almost surely, 238811192693 is an apocalyptic number.

It is an amenable number.

38811192693 is a deficient number, since it is larger than the sum of its proper divisors (26804938251).

38811192693 is a wasteful number, since it uses less digits than its factorization.

38811192693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 924 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The spelling of 38811192693 in words is "thirty-eight billion, eight hundred eleven million, one hundred ninety-two thousand, six hundred ninety-three".

Divisors: 1 3 7 13 21 39 49 91 147 157 273 277 467 471 637 831 1099 1401 1911 1939 2041 3269 3297 3601 5817 6071 6123 7693 9807 10803 13573 14287 18213 22883 23079 25207 40719 42497 42861 43489 68649 73319 75621 100009 127491 129359 130467 176449 219957 297479 300027 304423 388077 513233 529347 565357 892437 905513 913269 953147 1539699 1681667 1696071 2130961 2716539 2859441 3592631 3957499 5045001 6338591 6392883 6672029 10777893 11771669 11872497 19015773 20016087 20309363 27702493 35315007 46704203 60928089 82401683 83107479 140112609 142165541 247205049 264021719 426496623 792065157 995158787 1848152033 2985476361 5544456099 12937064231 38811192693