Search a number
-
+
3102404240 = 245132983081
BaseRepresentation
bin1011100011101010…
…1110111010010000
322000012201110112202
42320322232322100
522323203413430
61231503142332
7136611000215
oct27072567220
98005643482
103102404240
111352254251
12726ba49a8
133a598a470
14216061b0c
15132570d45
hexb8eaee90

3102404240 has 40 divisors (see below), whose sum is σ = 7767945528. Its totient is φ = 1145502720.

The previous prime is 3102404219. The next prime is 3102404317. The reversal of 3102404240 is 424042013.

It can be written as a sum of positive squares in 4 ways, for example, as 7929856 + 3094474384 = 2816^2 + 55628^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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 7 ways as a sum of consecutive naturals, for example, 1490501 + ... + 1492580.

Almost surely, 23102404240 is an apocalyptic number.

It is an amenable number.

3102404240 is an abundant number, since it is smaller than the sum of its proper divisors (4665541288).

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

3102404240 is a wasteful number, since it uses less digits than its factorization.

3102404240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983107 (or 2983101 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 3102404240 is about 55699.2301562598. The cubic root of 3102404240 is about 1458.4765869906.

Adding to 3102404240 its reverse (424042013), we get a palindrome (3526446253).

The spelling of 3102404240 in words is "three billion, one hundred two million, four hundred four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 2983081 5966162 11932324 14915405 23864648 29830810 38780053 47729296 59661620 77560106 119323240 155120212 193900265 238646480 310240424 387800530 620480848 775601060 1551202120 3102404240