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13077420 = 22351712821
BaseRepresentation
bin110001111000…
…101110101100
3220121101211220
4301320232230
511321434140
61144143340
7216104406
oct61705654
926541756
1013077420
117422294
124467b50
13292b525
141a45b76
151234bd0
hexc78bac

13077420 has 48 divisors (see below), whose sum is σ = 38773728. Its totient is φ = 3281920.

The previous prime is 13077413. The next prime is 13077457. The reversal of 13077420 is 2477031.

It is a super-3 number, since 3×130774203 (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5391 + ... + 7430.

It is an arithmetic number, because the mean of its divisors is an integer number (807786).

Almost surely, 213077420 is an apocalyptic number.

13077420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13077420 is an abundant number, since it is smaller than the sum of its proper divisors (25696308).

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

13077420 is a wasteful number, since it uses less digits than its factorization.

13077420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12850 (or 12848 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 13077420 is about 3616.2715605994. The cubic root of 13077420 is about 235.5993153080.

The spelling of 13077420 in words is "thirteen million, seventy-seven thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 12821 25642 38463 51284 64105 76926 128210 153852 192315 217957 256420 384630 435914 653871 769260 871828 1089785 1307742 2179570 2615484 3269355 4359140 6538710 13077420