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38705518516885 = 511703736700307
BaseRepresentation
bin10001100110011110101001…
…01011101001101010010101
312002001012201010122021002121
420303033110223221222111
520033122400220020020
6214153023021335541
711103244555014463
oct1063172453515225
9162035633567077
1038705518516885
1111372a11174340
12441147ba075b1
131879bb789833c
1497b4ddc07833
15471c45522baa
hex2333d4ae9a95

38705518516885 has 8 divisors (see below), whose sum is σ = 50669042422176. Its totient is φ = 28149468012240.

The previous prime is 38705518516883. The next prime is 38705518516891. The reversal of 38705518516885 is 58861581550783.

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

It is not a de Polignac number, because 38705518516885 - 21 = 38705518516883 is a prime.

It is a super-2 number, since 2×387055185168852 (a number of 28 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 (38705518516883) 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, 351868350099 + ... + 351868350208.

It is an arithmetic number, because the mean of its divisors is an integer number (6333630302772).

Almost surely, 238705518516885 is an apocalyptic number.

It is an amenable number.

38705518516885 is a deficient number, since it is larger than the sum of its proper divisors (11963523905291).

38705518516885 is a wasteful number, since it uses less digits than its factorization.

38705518516885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703736700323.

The product of its (nonzero) digits is 322560000, while the sum is 70.

The spelling of 38705518516885 in words is "thirty-eight trillion, seven hundred five billion, five hundred eighteen million, five hundred sixteen thousand, eight hundred eighty-five".

Divisors: 1 5 11 55 703736700307 3518683501535 7741103703377 38705518516885