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4920479985 = 355371179487
BaseRepresentation
bin1001001010100100…
…01001000011110001
3110200220202021121110
410211102021003301
540034120324420
62132130543533
7232635250461
oct44522110361
913626667543
104920479985
1120a5534493
12b53a37ba9
13605538b25
143496c1ba1
151dbe99ee0
hex1254890f1

4920479985 has 64 divisors (see below), whose sum is σ = 8196526080. Its totient is φ = 2519112960.

The previous prime is 4920479957. The next prime is 4920480049. The reversal of 4920479985 is 5899740294.

4920479985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4920479985 - 210 = 4920478961 is a prime.

It is a super-2 number, since 2×49204799852 = 48422246565571200450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10103412 + ... + 10103898.

It is an arithmetic number, because the mean of its divisors is an integer number (128070720).

Almost surely, 24920479985 is an apocalyptic number.

It is an amenable number.

4920479985 is a deficient number, since it is larger than the sum of its proper divisors (3276046095).

4920479985 is a wasteful number, since it uses less digits than its factorization.

4920479985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The square root of 4920479985 is about 70146.1330723227. The cubic root of 4920479985 is about 1700.8623058990.

The spelling of 4920479985 in words is "four billion, nine hundred twenty million, four hundred seventy-nine thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 53 71 159 179 213 265 355 487 537 795 895 1065 1461 2435 2685 3763 7305 9487 11289 12709 18815 25811 28461 34577 38127 47435 56445 63545 77433 87173 103731 129055 142305 172885 190635 261519 387165 435865 518655 673577 1307595 1832581 2020731 3367885 4620169 5497743 6189283 9162905 10103655 13860507 18567849 23100845 27488715 30946415 69302535 92839245 328031999 984095997 1640159995 4920479985