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140550220512 = 253213291976571
BaseRepresentation
bin1000001011100101110…
…0100010101011100000
3111102210012000222101200
42002321130202223200
54300321324024022
6144322355001200
713103652106512
oct2027134425340
9442705028350
10140550220512
1154674a31a39
12232a5b99200
131033b87b970
146b34737bb2
1539c91a9bac
hex20b9722ae0

140550220512 has 288 divisors, whose sum is σ = 447606038880. Its totient is φ = 41536696320.

The previous prime is 140550220507. The next prime is 140550220543. The reversal of 140550220512 is 215022055041.

140550220512 is a `hidden beast` number, since 1 + 40 + 550 + 2 + 20 + 51 + 2 = 666.

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

It is a congruent number.

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, 21386187 + ... + 21392757.

It is an arithmetic number, because the mean of its divisors is an integer number (1554187635).

Almost surely, 2140550220512 is an apocalyptic number.

140550220512 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 140550220512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223803019440).

140550220512 is an abundant number, since it is smaller than the sum of its proper divisors (307055818368).

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

140550220512 is a wasteful number, since it uses less digits than its factorization.

140550220512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6826 (or 6815 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 140550220512 its reverse (215022055041), we get a palindrome (355572275553).

The spelling of 140550220512 in words is "one hundred forty billion, five hundred fifty million, two hundred twenty thousand, five hundred twelve".