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13551045552 = 2433112397653
BaseRepresentation
bin11001001111011010…
…01000101110110000
31021222101200102212000
430213231020232300
5210223031424202
610120353534000
7656543662302
oct144755105660
937871612760
1013551045552
115824237100
122762274300
13137c5ba065
14927a0b972
155449ee91c
hex327b48bb0

13551045552 has 240 divisors, whose sum is σ = 42927356640. Its totient is φ = 4089761280.

The previous prime is 13551045527. The next prime is 13551045581. The reversal of 13551045552 is 25554015531.

13551045552 is a `hidden beast` number, since 1 + 3 + 55 + 10 + 45 + 552 = 666.

13551045552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 20751658 + ... + 20752310.

It is an arithmetic number, because the mean of its divisors is an integer number (178863986).

Almost surely, 213551045552 is an apocalyptic number.

13551045552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13551045552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21463678320).

13551045552 is an abundant number, since it is smaller than the sum of its proper divisors (29376311088).

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

13551045552 is a wasteful number, since it uses less digits than its factorization.

13551045552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 13551045552 in words is "thirteen billion, five hundred fifty-one million, forty-five thousand, five hundred fifty-two".