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12458285056 = 2117869021
BaseRepresentation
bin10111001101001001…
…00101100000000000
31012011020110110021001
423212210211200000
5201003310110211
65420120141344
7620504450530
oct134644454000
935136413231
1012458285056
115313416a58
1224b8307854
1312370a2609
148628354c0
154cdae8ac1
hex2e6925800

12458285056 has 48 divisors (see below), whose sum is σ = 28469160720. Its totient is φ = 5339258880.

The previous prime is 12458285039. The next prime is 12458285071. The reversal of 12458285056 is 65058285421.

It is a junction number, because it is equal to n+sod(n) for n = 12458284997 and 12458285015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420175 + ... + 448846.

It is an arithmetic number, because the mean of its divisors is an integer number (593107515).

Almost surely, 212458285056 is an apocalyptic number.

12458285056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12458285056 is an abundant number, since it is smaller than the sum of its proper divisors (16010875664).

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

12458285056 is an frugal number, since it uses more digits than its factorization.

12458285056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869050 (or 869030 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 46.

The spelling of 12458285056 in words is "twelve billion, four hundred fifty-eight million, two hundred eighty-five thousand, fifty-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1024 1792 2048 3584 7168 14336 869021 1738042 3476084 6083147 6952168 12166294 13904336 24332588 27808672 48665176 55617344 97330352 111234688 194660704 222469376 389321408 444938752 778642816 889877504 1557285632 1779755008 3114571264 6229142528 12458285056