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13344020 = 2251933457
BaseRepresentation
bin110010111001…
…110100010100
3221002221112222
4302321310110
511404002040
61154001512
7221264564
oct62716424
927087488
1013344020
117594618
124576298
1329c2991
141ab4da4
151288bb5
hexcb9d14

13344020 has 24 divisors (see below), whose sum is σ = 28175784. Its totient is φ = 5308416.

The previous prime is 13344011. The next prime is 13344029. The reversal of 13344020 is 2044331.

13344020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13344011) and next prime (13344029).

It can be written as a sum of positive squares in 4 ways, for example, as 283024 + 13060996 = 532^2 + 3614^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13344020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13344029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2132 + ... + 5588.

It is an arithmetic number, because the mean of its divisors is an integer number (1173991).

Almost surely, 213344020 is an apocalyptic number.

13344020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13344020 is an abundant number, since it is smaller than the sum of its proper divisors (14831764).

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

13344020 is a wasteful number, since it uses less digits than its factorization.

13344020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659 (or 3657 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13344020 is about 3652.9467557029. The cubic root of 13344020 is about 237.1895556031.

Adding to 13344020 its reverse (2044331), we get a palindrome (15388351).

The spelling of 13344020 in words is "thirteen million, three hundred forty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3457 3860 6914 13828 17285 34570 69140 667201 1334402 2668804 3336005 6672010 13344020