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13225288608 = 253572291061
BaseRepresentation
bin11000101000100100…
…11110001110100000
31021010200201021100000
430110102132032200
5204041133213413
610024155500000
7645510045510
oct142422361640
937120637300
1013225288608
115677370094
122691157600
131329c7167c
148d6651840
15526104073
hex31449e3a0

13225288608 has 288 divisors, whose sum is σ = 44810962560. Its totient is φ = 3758607360.

The previous prime is 13225288597. The next prime is 13225288649. The reversal of 13225288608 is 80688252231.

13225288608 is a `hidden beast` number, since 1 + 32 + 2 + 5 + 2 + 8 + 8 + 608 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12464398 + ... + 12465458.

It is an arithmetic number, because the mean of its divisors is an integer number (155593620).

Almost surely, 213225288608 is an apocalyptic number.

13225288608 is a gapful number since it is divisible by the number (18) 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 13225288608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22405481280).

13225288608 is an abundant number, since it is smaller than the sum of its proper divisors (31585673952).

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

13225288608 is a wasteful number, since it uses less digits than its factorization.

13225288608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 13225288608 in words is "thirteen billion, two hundred twenty-five million, two hundred eighty-eight thousand, six hundred eight".