Search a number
-
+
49873080640 = 265312149937
BaseRepresentation
bin101110011100101010…
…101101000101000000
311202201201222222222211
4232130222231011000
51304120002040030
634524505111504
73413621122315
oct563452550500
9152651888884
1049873080640
111a173065719
1297ba488594
13491a692506
1425b1932d0c
15146d67412a
hexb9caad140

49873080640 has 56 divisors (see below), whose sum is σ = 118800704232. Its totient is φ = 19942440960.

The previous prime is 49873080637. The next prime is 49873080749. The reversal of 49873080640 is 4608037894.

It can be written as a sum of positive squares in 4 ways, for example, as 2195484736 + 47677595904 = 46856^2 + 218352^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973752 + ... + 1023688.

It is an arithmetic number, because the mean of its divisors is an integer number (2121441147).

Almost surely, 249873080640 is an apocalyptic number.

49873080640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49873080640 is an abundant number, since it is smaller than the sum of its proper divisors (68927623592).

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

49873080640 is a wasteful number, since it uses less digits than its factorization.

49873080640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53075 (or 53065 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 49873080640 in words is "forty-nine billion, eight hundred seventy-three million, eighty thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 3121 6242 12484 15605 24968 31210 49936 49937 62420 99872 99874 124840 199744 199748 249680 249685 399496 499360 499370 798992 998720 998740 1597984 1997480 3195968 3994960 7989920 15979840 155853377 311706754 623413508 779266885 1246827016 1558533770 2493654032 3117067540 4987308064 6234135080 9974616128 12468270160 24936540320 49873080640