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38812135281007 = 115959802981943
BaseRepresentation
bin10001101001100101001111…
…00010010101000101101111
312002102101220102220001100011
420310302213202111011233
520041344223112443012
6214314014312514051
711114040615401464
oct1064624742250557
9162371812801304
1038812135281007
1111404152599240
12442a0756ab927
131886c7918ba0a
1498273594566b
154748d55c51a7
hex234ca789516f

38812135281007 has 8 divisors (see below), whose sum is σ = 43058146999680. Its totient is φ = 34685729526360.

The previous prime is 38812135280987. The next prime is 38812135281011. The reversal of 38812135281007 is 70018253121883.

38812135281007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-38812135281007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38812135281107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29901490323 + ... + 29901491620.

It is an arithmetic number, because the mean of its divisors is an integer number (5382268374960).

Almost surely, 238812135281007 is an apocalyptic number.

38812135281007 is a deficient number, since it is larger than the sum of its proper divisors (4246011718673).

38812135281007 is a wasteful number, since it uses less digits than its factorization.

38812135281007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59802982013.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 38812135281007 in words is "thirty-eight trillion, eight hundred twelve billion, one hundred thirty-five million, two hundred eighty-one thousand, seven".

Divisors: 1 11 59 649 59802981943 657832801373 3528375934637 38812135281007