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13259020 = 225662951
BaseRepresentation
bin110010100101…
…000100001100
3220221121221211
4302211010030
511343242040
61152104204
7220462015
oct62450414
926847854
1013259020
117536775
124535064
132993098
141a9200c
15126d8ea
hexca510c

13259020 has 12 divisors (see below), whose sum is σ = 27843984. Its totient is φ = 5303600.

The previous prime is 13258991. The next prime is 13259053. The reversal of 13259020 is 2095231.

It is a super-2 number, since 2×132590202 = 351603222720800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13258982 and 13259000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331456 + ... + 331495.

It is an arithmetic number, because the mean of its divisors is an integer number (2320332).

Almost surely, 213259020 is an apocalyptic number.

13259020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13259020 is an abundant number, since it is smaller than the sum of its proper divisors (14584964).

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

13259020 is a wasteful number, since it uses less digits than its factorization.

13259020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662960 (or 662958 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 13259020 is about 3641.2937261364. The cubic root of 13259020 is about 236.6848583076.

The spelling of 13259020 in words is "thirteen million, two hundred fifty-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 662951 1325902 2651804 3314755 6629510 13259020