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2040704361 = 34171481993
BaseRepresentation
bin111100110100010…
…1010110101101001
312021012221112010000
41321220222311221
513134410014421
6534255213213
7101366462253
oct17150526551
95235845100
102040704361
11957a19433
1248b517209
13266a29697
14155052cd3
15be253226
hex79a2ad69

2040704361 has 20 divisors (see below), whose sum is σ = 3227782932. Its totient is φ = 1280441088.

The previous prime is 2040704359. The next prime is 2040704377. The reversal of 2040704361 is 1634070402.

It can be written as a sum of positive squares in 2 ways, for example, as 642318336 + 1398386025 = 25344^2 + 37395^2 .

It is not a de Polignac number, because 2040704361 - 21 = 2040704359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2040704311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 739620 + ... + 742373.

Almost surely, 22040704361 is an apocalyptic number.

It is an amenable number.

2040704361 is a deficient number, since it is larger than the sum of its proper divisors (1187078571).

2040704361 is a wasteful number, since it uses less digits than its factorization.

2040704361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482022 (or 1482013 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 2040704361 is about 45174.1558969285. The cubic root of 2040704361 is about 1268.4110910295.

Adding to 2040704361 its reverse (1634070402), we get a palindrome (3674774763).

The spelling of 2040704361 in words is "two billion, forty million, seven hundred four thousand, three hundred sixty-one".

Divisors: 1 3 9 17 27 51 81 153 459 1377 1481993 4445979 13337937 25193881 40013811 75581643 120041433 226744929 680234787 2040704361