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12052520144 = 247107611787
BaseRepresentation
bin10110011100110001…
…01101110011010000
31011002221221110102222
423032120231303100
5144140421121034
65311543200212
7604446505460
oct131630556320
934087843388
1012052520144
115125373855
122404446068
1311a0cc3032
148249adba0
154a819712e
hex2ce62dcd0

12052520144 has 20 divisors (see below), whose sum is σ = 26687723424. Its totient is φ = 5165365728.

The previous prime is 12052520113. The next prime is 12052520149. The reversal of 12052520144 is 44102525021.

12052520144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12052520149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53805782 + ... + 53806005.

Almost surely, 212052520144 is an apocalyptic number.

12052520144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12052520144 is an abundant number, since it is smaller than the sum of its proper divisors (14635203280).

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

12052520144 is a wasteful number, since it uses less digits than its factorization.

12052520144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107611802 (or 107611796 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 12052520144 in words is "twelve billion, fifty-two million, five hundred twenty thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 107611787 215223574 430447148 753282509 860894296 1506565018 1721788592 3013130036 6026260072 12052520144