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2104040015 = 57115465039
BaseRepresentation
bin111110101101001…
…0001101001001111
312102122010022021222
41331122101221033
513302113240030
6544440513555
7103066021310
oct17532215117
95378108258
102104040015
1198a748450
124a877b8bb
13276ba39bc
1415d61c607
15c4ab43e5
hex7d691a4f

2104040015 has 16 divisors (see below), whose sum is σ = 3147863040. Its totient is φ = 1311609120.

The previous prime is 2104039997. The next prime is 2104040017. The reversal of 2104040015 is 5100404012.

It is not a de Polignac number, because 2104040015 - 28 = 2104039759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2104039975 and 2104040002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104040017) 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, 2732135 + ... + 2732904.

It is an arithmetic number, because the mean of its divisors is an integer number (196741440).

Almost surely, 22104040015 is an apocalyptic number.

2104040015 is a deficient number, since it is larger than the sum of its proper divisors (1043823025).

2104040015 is a wasteful number, since it uses less digits than its factorization.

2104040015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465062.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2104040015 is about 45869.8159468730. The cubic root of 2104040015 is about 1281.3998387838.

Adding to 2104040015 its reverse (5100404012), we get a palindrome (7204444027).

The spelling of 2104040015 in words is "two billion, one hundred four million, forty thousand, fifteen".

Divisors: 1 5 7 11 35 55 77 385 5465039 27325195 38255273 60115429 191276365 300577145 420808003 2104040015