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13050020 = 2254713883
BaseRepresentation
bin110001110010…
…000010100100
3220120000021002
4301302002210
511320100040
61143412432
7215631464
oct61620244
926500232
1013050020
117403745
124454118
13291bc09
141a39ba4
15122ba15
hexc720a4

13050020 has 24 divisors (see below), whose sum is σ = 27990144. Its totient is φ = 5108576.

The previous prime is 13049987. The next prime is 13050043. The reversal of 13050020 is 2005031.

It is a junction number, because it is equal to n+sod(n) for n = 13049983 and 13050010.

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, 6002 + ... + 7881.

It is an arithmetic number, because the mean of its divisors is an integer number (1166256).

Almost surely, 213050020 is an apocalyptic number.

13050020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13050020 is an abundant number, since it is smaller than the sum of its proper divisors (14940124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13050020 is a wasteful number, since it uses less digits than its factorization.

13050020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13939 (or 13937 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 13050020 is about 3612.4811418193. The cubic root of 13050020 is about 235.4346565555.

Adding to 13050020 its reverse (2005031), we get a palindrome (15055051).

The spelling of 13050020 in words is "thirteen million, fifty thousand, twenty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 13883 27766 55532 69415 138830 277660 652501 1305002 2610004 3262505 6525010 13050020