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2489119890 = 2351931140867
BaseRepresentation
bin1001010001011100…
…1111010010010010
320102110201101120120
42110113033102102
520044203314030
61050554251110
7115453112205
oct22427172222
96373641516
102489119890
111068052684
12595726a96
133088c010a
1419881b93c
15e87cc010
hex945cf492

2489119890 has 64 divisors (see below), whose sum is σ = 6491197440. Its totient is φ = 608541120.

The previous prime is 2489119883. The next prime is 2489119891. The reversal of 2489119890 is 989119842.

It is a super-2 number, since 2×24891198902 = 12391435653587224200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2489119891) 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, 52764 + ... + 88103.

It is an arithmetic number, because the mean of its divisors is an integer number (101424960).

Almost surely, 22489119890 is an apocalyptic number.

2489119890 is an abundant number, since it is smaller than the sum of its proper divisors (4002077550).

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

2489119890 is a wasteful number, since it uses less digits than its factorization.

2489119890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140927.

The product of its (nonzero) digits is 373248, while the sum is 51.

The square root of 2489119890 is about 49891.0802649131. The cubic root of 2489119890 is about 1355.2370676741.

The spelling of 2489119890 in words is "two billion, four hundred eighty-nine million, one hundred nineteen thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 19 30 31 38 57 62 93 95 114 155 186 190 285 310 465 570 589 930 1178 1767 2945 3534 5890 8835 17670 140867 281734 422601 704335 845202 1408670 2113005 2676473 4226010 4366877 5352946 8029419 8733754 13100631 13382365 16058838 21834385 26201262 26764730 40147095 43668770 65503155 80294190 82970663 131006310 165941326 248911989 414853315 497823978 829706630 1244559945 2489119890