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2042513161 = 131771130171
BaseRepresentation
bin111100110111110…
…0100011100001001
312021100100102022121
41321233210130021
513140340410121
6534402051241
7101421034603
oct17157443411
95240312277
102042513161
11958a44407
12490049b21
13267210a90
141553a4173
15be4ae141
hex79be4709

2042513161 has 16 divisors (see below), whose sum is σ = 2361840768. Its totient is φ = 1749484800.

The previous prime is 2042513141. The next prime is 2042513191. The reversal of 2042513161 is 1613152402.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2042513161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042513131) 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 15 ways as a sum of consecutive naturals, for example, 49395 + ... + 80776.

It is an arithmetic number, because the mean of its divisors is an integer number (147615048).

Almost surely, 22042513161 is an apocalyptic number.

It is an amenable number.

2042513161 is a deficient number, since it is larger than the sum of its proper divisors (319327607).

2042513161 is a wasteful number, since it uses less digits than its factorization.

2042513161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130272.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2042513161 is about 45194.1717591992. The cubic root of 2042513161 is about 1268.7857369115.

Adding to 2042513161 its reverse (1613152402), we get a palindrome (3655665563).

The spelling of 2042513161 in words is "two billion, forty-two million, five hundred thirteen thousand, one hundred sixty-one".

Divisors: 1 13 17 71 221 923 1207 15691 130171 1692223 2212907 9242141 28767791 120147833 157116397 2042513161