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12258648200 = 235278292
BaseRepresentation
bin10110110101010110…
…00010000010001000
31011122022210211222102
423122223002002020
5200101203220300
65344225212532
7612531535061
oct133253020210
934568724872
1012258648200
115220761917
122461491148
1312049146b6
14844109568
154bb3120d5
hex2daac2088

12258648200 has 36 divisors (see below), whose sum is σ = 28504998015. Its totient is φ = 4902832960.

The previous prime is 12258648191. The next prime is 12258648239. The reversal of 12258648200 is 284685221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 625300036 + 11633348164 = 25006^2 + 107858^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=78290.

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 8 ways as a sum of consecutive naturals, for example, 1561886 + ... + 1569714.

Almost surely, 212258648200 is an apocalyptic number.

12258648200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12258648200 is an abundant number, since it is smaller than the sum of its proper divisors (16246349815).

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

12258648200 is an frugal number, since it uses more digits than its factorization.

12258648200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15674 (or 7836 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 12258648200 in words is "twelve billion, two hundred fifty-eight million, six hundred forty-eight thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 7829 15658 31316 39145 62632 78290 156580 195725 313160 391450 782900 1565800 61293241 122586482 245172964 306466205 490345928 612932410 1225864820 1532331025 2451729640 3064662050 6129324100 12258648200