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38388061327861 = 714936805427927
BaseRepresentation
bin10001011101001111010101…
…10000100101000111110101
312000220212021222221011000001
420232213222300211013311
520012422222144442421
6213351122032151301
711041305642310240
oct1056475260450765
9160825258834001
1038388061327861
11112603159325a3
12437ba44098531
131855c951303ab
14969dc63b6257
1546886547d691
hex22e9eac251f5

38388061327861 has 8 divisors (see below), whose sum is σ = 44166513513600. Its totient is φ = 32683219998288.

The previous prime is 38388061327841. The next prime is 38388061327897. The reversal of 38388061327861 is 16872316088383.

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

It is a cyclic number.

It is not a de Polignac number, because 38388061327861 - 211 = 38388061325813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38388061327793 and 38388061327802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38388061327841) 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, 18402712921 + ... + 18402715006.

It is an arithmetic number, because the mean of its divisors is an integer number (5520814189200).

Almost surely, 238388061327861 is an apocalyptic number.

It is an amenable number.

38388061327861 is a deficient number, since it is larger than the sum of its proper divisors (5778452185739).

38388061327861 is a wasteful number, since it uses less digits than its factorization.

38388061327861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36805428083.

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 38388061327861 in words is "thirty-eight trillion, three hundred eighty-eight billion, sixty-one million, three hundred twenty-seven thousand, eight hundred sixty-one".

Divisors: 1 7 149 1043 36805427927 257637995489 5484008761123 38388061327861