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39968271125 = 531971623077
BaseRepresentation
bin100101001110010010…
…110110101100010101
310211011110100112122222
4211032102312230111
51123323334134000
630210002432125
72613310461536
oct451622665425
9124143315588
1039968271125
1115a50057732
1278b5362645
1339cc623693
141d122ac68d
15108dd1aa85
hex94e4b6b15

39968271125 has 16 divisors (see below), whose sum is σ = 50133633264. Its totient is φ = 31812289600.

The previous prime is 39968271061. The next prime is 39968271127. The reversal of 39968271125 is 52117286993.

39968271125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 462336004 + 39505935121 = 21502^2 + 198761^2 .

It is not a de Polignac number, because 39968271125 - 26 = 39968271061 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 (39968271127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786914 + ... + 836163.

It is an arithmetic number, because the mean of its divisors is an integer number (3133352079).

Almost surely, 239968271125 is an apocalyptic number.

It is an amenable number.

39968271125 is a deficient number, since it is larger than the sum of its proper divisors (10165362139).

39968271125 is a wasteful number, since it uses less digits than its factorization.

39968271125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623289 (or 1623279 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The spelling of 39968271125 in words is "thirty-nine billion, nine hundred sixty-eight million, two hundred seventy-one thousand, one hundred twenty-five".

Divisors: 1 5 25 125 197 985 4925 24625 1623077 8115385 40576925 202884625 319746169 1598730845 7993654225 39968271125