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442740003552 = 253271141486947
BaseRepresentation
bin1100111000101010101…
…11000101001011100000
31120022210022102111202100
412130111113011023200
524223212420103202
6535220354450400
743662336636240
oct6342527051340
91508708374670
10442740003552
1116084620a690
1271980893a00
133299a272682
1417600617b20
15b7b3c1841c
hex67155c52e0

442740003552 has 288 divisors, whose sum is σ = 1608003581184. Its totient is φ = 112192358400.

The previous prime is 442740003529. The next prime is 442740003553. The reversal of 442740003552 is 255300047244.

442740003552 is a `hidden beast` number, since 44 + 27 + 40 + 0 + 0 + 3 + 552 = 666.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442740003553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 665743 + ... + 1152689.

It is an arithmetic number, because the mean of its divisors is an integer number (5583345768).

Almost surely, 2442740003552 is an apocalyptic number.

442740003552 is a gapful number since it is divisible by the number (42) 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 442740003552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804001790592).

442740003552 is an abundant number, since it is smaller than the sum of its proper divisors (1165263577632).

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

442740003552 is a wasteful number, since it uses less digits than its factorization.

442740003552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487022 (or 487011 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 36.

The spelling of 442740003552 in words is "four hundred forty-two billion, seven hundred forty million, three thousand, five hundred fifty-two".