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13410820 = 225670541
BaseRepresentation
bin110011001010…
…001000000100
3221020100012001
4303022020010
511413121240
61155235044
7221663413
oct63121004
927210161
1013410820
11762a825
1245a8a84
132a171c7
141ad147a
15129d89a
hexcca204

13410820 has 12 divisors (see below), whose sum is σ = 28162764. Its totient is φ = 5364320.

The previous prime is 13410791. The next prime is 13410821. The reversal of 13410820 is 2801431.

It can be written as a sum of positive squares in 2 ways, for example, as 4743684 + 8667136 = 2178^2 + 2944^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13410821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335251 + ... + 335290.

It is an arithmetic number, because the mean of its divisors is an integer number (2346897).

Almost surely, 213410820 is an apocalyptic number.

13410820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13410820 is an abundant number, since it is smaller than the sum of its proper divisors (14751944).

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

13410820 is a wasteful number, since it uses less digits than its factorization.

13410820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670550 (or 670548 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13410820 is about 3662.0786447044. The cubic root of 13410820 is about 237.5846863276.

The spelling of 13410820 in words is "thirteen million, four hundred ten thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 670541 1341082 2682164 3352705 6705410 13410820