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442925690880 = 21235101137521
BaseRepresentation
bin1100111001000000110…
…11011011000000000000
31120100021020211101212210
412130200123123000000
524224102434102010
6535251030422120
744000053152561
oct6344033330000
91510236741783
10442925690880
11160931007292
1271a12b01940
13329c988812a
141761b152168
15b7c5196b20
hex67206db000

442925690880 has 416 divisors, whose sum is σ = 1444434752448. Its totient is φ = 115867648000.

The previous prime is 442925690833. The next prime is 442925690887. The reversal of 442925690880 is 88096529244.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 442925690880.

It is not an unprimeable number, because it can be changed into a prime (442925690887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 850145020 + ... + 850145540.

Almost surely, 2442925690880 is an apocalyptic number.

442925690880 is a gapful number since it is divisible by the number (40) 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 442925690880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722217376224).

442925690880 is an abundant number, since it is smaller than the sum of its proper divisors (1001509061568).

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

442925690880 is a wasteful number, since it uses less digits than its factorization.

442925690880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 442925690880 in words is "four hundred forty-two billion, nine hundred twenty-five million, six hundred ninety thousand, eight hundred eighty".