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13303020 = 2235221717
BaseRepresentation
bin110010101111…
…110011101100
3221000212022110
4302233303230
511401144040
61153044020
7221034213
oct62576354
927025273
1013303020
117566835
124556610
1329aa113
141aa407a
15127b980
hexcafcec

13303020 has 24 divisors (see below), whose sum is σ = 37248624. Its totient is φ = 3547456.

The previous prime is 13303001. The next prime is 13303033. The reversal of 13303020 is 2030331.

Adding to 13303020 its reverse (2030331), we get a palindrome (15333351).

It is a happy number.

It is a super-2 number, since 2×133030202 = 353940682240800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 13302987 and 13303005.

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, 110799 + ... + 110918.

It is an arithmetic number, because the mean of its divisors is an integer number (1552026).

Almost surely, 213303020 is an apocalyptic number.

13303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13303020 is an abundant number, since it is smaller than the sum of its proper divisors (23945604).

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

13303020 is a wasteful number, since it uses less digits than its factorization.

13303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221729 (or 221727 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 13303020 is about 3647.3305306758. The cubic root of 13303020 is about 236.9463817888.

The spelling of 13303020 in words is "thirteen million, three hundred three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 221717 443434 665151 886868 1108585 1330302 2217170 2660604 3325755 4434340 6651510 13303020