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2042520212 = 221347737889
BaseRepresentation
bin111100110111110…
…0110001010010100
312021100100202222202
41321233212022110
513140341121322
6534402144032
7101421064265
oct17157461224
95240322882
102042520212
11958a49737
12490052018
13267214055
141553a696c
15be4b1292
hex79be6294

2042520212 has 12 divisors (see below), whose sum is σ = 3574769940. Its totient is φ = 1021157376.

The previous prime is 2042520211. The next prime is 2042520239. The reversal of 2042520212 is 2120252402.

It can be written as a sum of positive squares in 2 ways, for example, as 916515076 + 1126005136 = 30274^2 + 33556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042520211) 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 3 ways as a sum of consecutive naturals, for example, 34964 + ... + 72852.

It is an arithmetic number, because the mean of its divisors is an integer number (297897495).

Almost surely, 22042520212 is an apocalyptic number.

It is an amenable number.

2042520212 is a deficient number, since it is larger than the sum of its proper divisors (1532249728).

2042520212 is a wasteful number, since it uses less digits than its factorization.

2042520212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51370 (or 51368 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2042520212 is about 45194.2497669781. The cubic root of 2042520212 is about 1268.7871969099.

Adding to 2042520212 its reverse (2120252402), we get a palindrome (4162772614).

The spelling of 2042520212 in words is "two billion, forty-two million, five hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 13477 26954 37889 53908 75778 151556 510630053 1021260106 2042520212