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120120202018 = 25310910396417
BaseRepresentation
bin110111111011110111…
…0001101001100100010
3102111001101100111200001
41233313232031030202
53432001232431033
6131103224450214
711451455604415
oct1576756151442
9374041314601
10120120202018
1146a407a4733
121b34401996a
13b43408221b
145b572b5b7c
1531d07eae7d
hex1bf7b8d322

120120202018 has 16 divisors (see below), whose sum is σ = 185264168760. Its totient is φ = 58386272256.

The previous prime is 120120202009. The next prime is 120120202061. The reversal of 120120202018 is 810202021021.

It can be written as a sum of positive squares in 4 ways, for example, as 120085120089 + 35081929 = 346533^2 + 5923^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120120201986 and 120120202004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5186655 + ... + 5209762.

Almost surely, 2120120202018 is an apocalyptic number.

120120202018 is a deficient number, since it is larger than the sum of its proper divisors (65143966742).

120120202018 is a wasteful number, since it uses less digits than its factorization.

120120202018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10396581.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120120202018 its reverse (810202021021), we get a palindrome (930322223039).

The spelling of 120120202018 in words is "one hundred twenty billion, one hundred twenty million, two hundred two thousand, eighteen".

Divisors: 1 2 53 106 109 218 5777 11554 10396417 20792834 551010101 1102020202 1133209453 2266418906 60060101009 120120202018