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4985081790 = 2351331247283
BaseRepresentation
bin1001010010010001…
…00100111110111110
3110212102022101121220
410221020210332332
540202140104130
62142355334210
7234351332103
oct45110447676
913772271556
104985081790
112128a48807
12b715b1366
13615a37550
143540daaaa
151e29ab410
hex129224fbe

4985081790 has 192 divisors, whose sum is σ = 13644868608. Its totient is φ = 1158140160.

The previous prime is 4985081789. The next prime is 4985081807. The reversal of 4985081790 is 971805894.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17614989 + ... + 17615271.

It is an arithmetic number, because the mean of its divisors is an integer number (71067024).

Almost surely, 24985081790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4985081790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6822434304).

4985081790 is an abundant number, since it is smaller than the sum of its proper divisors (8659786818).

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

4985081790 is a wasteful number, since it uses less digits than its factorization.

4985081790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 4985081790 is about 70605.1116421467. Note that the first 3 decimals coincide. The cubic root of 4985081790 is about 1708.2736004708.

The spelling of 4985081790 in words is "four billion, nine hundred eighty-five million, eighty-one thousand, seven hundred ninety".