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38110383672721 = 371229838088177
BaseRepresentation
bin10001010101001010000111…
…11000011000110110010001
311222221022120011102201202021
420222211003320120312101
514443400031210011341
6213015400224251441
711012245556216323
oct1052450370306621
9158838504381667
1038110383672721
1111163583058398
12433606a470b81
131835a41b76089
1495a7a3b63613
154615128729d1
hex22a943e18d91

38110383672721 has 8 divisors (see below), whose sum is σ = 39172241439720. Its totient is φ = 37050202084608.

The previous prime is 38110383672707. The next prime is 38110383672733. The reversal of 38110383672721 is 12727638301183.

It can be written as a sum of positive squares in 4 ways, for example, as 27964636185600 + 10145747487121 = 5288160^2 + 3185239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38110383672721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38110383672701) 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, 418998616 + ... + 419089561.

It is an arithmetic number, because the mean of its divisors is an integer number (4896530179965).

Almost surely, 238110383672721 is an apocalyptic number.

It is an amenable number.

38110383672721 is a deficient number, since it is larger than the sum of its proper divisors (1061857766999).

38110383672721 is a wasteful number, since it uses less digits than its factorization.

38110383672721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838089443.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 38110383672721 in words is "thirty-eight trillion, one hundred ten billion, three hundred eighty-three million, six hundred seventy-two thousand, seven hundred twenty-one".

Divisors: 1 37 1229 45473 838088177 31009262549 1030010369533 38110383672721