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39382540385 = 517874407671
BaseRepresentation
bin100100101011011000…
…011110000001100001
310202122122012100010212
4210223120132001201
51121123412243020
630031520303505
72562636032666
oct445330360141
9122578170125
1039382540385
111577a465541
127771171b95
133938182946
141c9859ba6d
1510576bacc5
hex92b61e061

39382540385 has 8 divisors (see below), whose sum is σ = 47285505216. Its totient is φ = 31488394480.

The previous prime is 39382540381. The next prime is 39382540397. The reversal of 39382540385 is 58304528393.

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

It is not a de Polignac number, because 39382540385 - 22 = 39382540381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39382540381) 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, 2194901 + ... + 2212770.

It is an arithmetic number, because the mean of its divisors is an integer number (5910688152).

Almost surely, 239382540385 is an apocalyptic number.

It is an amenable number.

39382540385 is a deficient number, since it is larger than the sum of its proper divisors (7902964831).

39382540385 is a wasteful number, since it uses less digits than its factorization.

39382540385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409463.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 39382540385 in words is "thirty-nine billion, three hundred eighty-two million, five hundred forty thousand, three hundred eighty-five".

Divisors: 1 5 1787 8935 4407671 22038355 7876508077 39382540385