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12448900 = 2252124489
BaseRepresentation
bin101111011111…
…010010000100
3212102110200101
4233133102010
511141331100
61122453444
7210546112
oct57372204
925373611
1012448900
117033052
124204284
13276b419
141920ab2
15115d86a
hexbdf484

12448900 has 18 divisors (see below), whose sum is σ = 27014330. Its totient is φ = 4979520.

The previous prime is 12448897. The next prime is 12448903. The reversal of 12448900 is 984421.

It is an interprime number because it is at equal distance from previous prime (12448897) and next prime (12448903).

It can be written as a sum of positive squares in 3 ways, for example, as 2116 + 12446784 = 46^2 + 3528^2 .

It is a super-2 number, since 2×124489002 = 309950222420000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12448903) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 62145 + ... + 62344.

Almost surely, 212448900 is an apocalyptic number.

12448900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12448900 is an abundant number, since it is smaller than the sum of its proper divisors (14565430).

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

12448900 is a wasteful number, since it uses less digits than its factorization.

12448900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124503 (or 124496 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12448900 is about 3528.2998738769. The cubic root of 12448900 is about 231.7627628409.

The spelling of 12448900 in words is "twelve million, four hundred forty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 124489 248978 497956 622445 1244890 2489780 3112225 6224450 12448900