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12830620 = 2251158321
BaseRepresentation
bin110000111100…
…011110011100
3220010212022011
4300330132130
511241034440
61135001004
7214026025
oct60743634
926125264
1012830620
117273920
124369164
1328730aa
1419bdc4c
1511d69ea
hexc3c79c

12830620 has 24 divisors (see below), whose sum is σ = 29394288. Its totient is φ = 4665600.

The previous prime is 12830617. The next prime is 12830633. The reversal of 12830620 is 2603821.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 12830591 and 12830600.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 28941 + ... + 29380.

It is an arithmetic number, because the mean of its divisors is an integer number (1224762).

Almost surely, 212830620 is an apocalyptic number.

12830620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12830620 is an abundant number, since it is smaller than the sum of its proper divisors (16563668).

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

12830620 is a wasteful number, since it uses less digits than its factorization.

12830620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58341 (or 58339 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12830620 is about 3581.9854829410. The cubic root of 12830620 is about 234.1077984826.

The spelling of 12830620 in words is "twelve million, eight hundred thirty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 58321 116642 233284 291605 583210 641531 1166420 1283062 2566124 3207655 6415310 12830620