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1220230310244 = 22311411817011777
BaseRepresentation
bin10001110000011011011…
…001001110100101100100
311022122121221121100111020
4101300123121032211210
5124443012424411434
62332322134211140
7154105305334251
oct21603331164544
94278557540436
101220230310244
11430551220660
121785a47b3ab0
138b0b48ccb9a
14430b9242428
1521b1ac9b849
hex11c1b64e964

1220230310244 has 192 divisors, whose sum is σ = 3205743899904. Its totient is φ = 358041600000.

The previous prime is 1220230310209. The next prime is 1220230310261. The reversal of 1220230310244 is 4420130320221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 686679084 + ... + 686680860.

It is an arithmetic number, because the mean of its divisors is an integer number (16696582812).

Almost surely, 21220230310244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220230310244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1602871949952).

1220230310244 is an abundant number, since it is smaller than the sum of its proper divisors (1985513589660).

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

1220230310244 is a wasteful number, since it uses less digits than its factorization.

1220230310244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1220230310244 its reverse (4420130320221), we get a palindrome (5640360630465).

The spelling of 1220230310244 in words is "one trillion, two hundred twenty billion, two hundred thirty million, three hundred ten thousand, two hundred forty-four".