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2145130304 = 2664352127
BaseRepresentation
bin111111111011100…
…0001011101000000
312112111102220120112
41333313001131000
513343123132204
6552505330452
7104105210132
oct17767013500
95474386515
102145130304
11a00963169
124ba496a28
1328255c895
14164c77052
15c84ce26e
hex7fdc1740

2145130304 has 28 divisors (see below), whose sum is σ = 4263444864. Its totient is φ = 1070876544.

The previous prime is 2145130303. The next prime is 2145130327. The reversal of 2145130304 is 4030315412.

It is a super-2 number, since 2×21451303042 = 9203168042278264832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2145130304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145130303) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15089 + ... + 67215.

It is an arithmetic number, because the mean of its divisors is an integer number (152265888).

Almost surely, 22145130304 is an apocalyptic number.

It is an amenable number.

2145130304 is a deficient number, since it is larger than the sum of its proper divisors (2118314560).

2145130304 is an equidigital number, since it uses as much as digits as its factorization.

2145130304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52782 (or 52772 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2145130304 is about 46315.5514271395. The cubic root of 2145130304 is about 1289.6877043837.

Adding to 2145130304 its reverse (4030315412), we get a palindrome (6175445716).

The spelling of 2145130304 in words is "two billion, one hundred forty-five million, one hundred thirty thousand, three hundred four".

Divisors: 1 2 4 8 16 32 64 643 1286 2572 5144 10288 20576 41152 52127 104254 208508 417016 834032 1668064 3336128 33517661 67035322 134070644 268141288 536282576 1072565152 2145130304