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12773720 = 235319343
BaseRepresentation
bin110000101110…
…100101011000
3220000222020202
4300232211120
511232224340
61133441332
7213401111
oct60564530
926028222
1012773720
1172350a3
124340248
13285321b
1419a7208
1511c4c15
hexc2e958

12773720 has 16 divisors (see below), whose sum is σ = 28740960. Its totient is φ = 5109472.

The previous prime is 12773711. The next prime is 12773737. The reversal of 12773720 is 2737721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159632 + ... + 159711.

It is an arithmetic number, because the mean of its divisors is an integer number (1796310).

Almost surely, 212773720 is an apocalyptic number.

12773720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12773720 is an abundant number, since it is smaller than the sum of its proper divisors (15967240).

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

12773720 is a wasteful number, since it uses less digits than its factorization.

12773720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319354 (or 319350 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 12773720 is about 3574.0341352595. The cubic root of 12773720 is about 233.7612193991.

The spelling of 12773720 in words is "twelve million, seven hundred seventy-three thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 319343 638686 1277372 1596715 2554744 3193430 6386860 12773720