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22990480128 = 28347211317
BaseRepresentation
bin10101011010010101…
…101110001100000000
32012100020122101210000
4111122111232030000
5334041030331003
614321153440000
71442503566600
oct253225561400
965306571700
1022990480128
119828588000
124557570000
132225107cc5
141181530c00
158e857e1a3
hex55a56e300

22990480128 has 1080 divisors, whose sum is σ = 92874119184. Its totient is φ = 5620285440.

The previous prime is 22990480081. The next prime is 22990480141. The reversal of 22990480128 is 82108409922.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1352381176 + ... + 1352381192.

Almost surely, 222990480128 is an apocalyptic number.

22990480128 is a gapful number since it is divisible by the number (28) 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 22990480128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46437059592).

22990480128 is an abundant number, since it is smaller than the sum of its proper divisors (69883639056).

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

22990480128 is an equidigital number, since it uses as much as digits as its factorization.

22990480128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 22990480128 in words is "twenty-two billion, nine hundred ninety million, four hundred eighty thousand, one hundred twenty-eight".