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3240445045 = 52324129881
BaseRepresentation
bin1100000100100101…
…0100010001110101
322100211110122221011
43001021110101311
523114023220140
61253313552221
7143205220435
oct30111242165
98324418834
103240445045
111413168362
12765275671
133c845cb06
1422a5162c5
1513e73bcea
hexc1254475

3240445045 has 24 divisors (see below), whose sum is σ = 4164235992. Its totient is φ = 2419084800.

The previous prime is 3240445037. The next prime is 3240445063. The reversal of 3240445045 is 5405440423.

It can be written as a sum of positive squares in 4 ways, for example, as 109035364 + 3131409681 = 10442^2 + 55959^2 .

It is not a de Polignac number, because 3240445045 - 23 = 3240445037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3240444998 and 3240445016.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 93505 + ... + 123385.

It is an arithmetic number, because the mean of its divisors is an integer number (173509833).

Almost surely, 23240445045 is an apocalyptic number.

It is an amenable number.

3240445045 is a deficient number, since it is larger than the sum of its proper divisors (923790947).

3240445045 is a wasteful number, since it uses less digits than its factorization.

3240445045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29973 (or 29950 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 3240445045 is about 56924.9070706312. The cubic root of 3240445045 is about 1479.7949930614.

Adding to 3240445045 its reverse (5405440423), we get a palindrome (8645885468).

The spelling of 3240445045 in words is "three billion, two hundred forty million, four hundred forty-five thousand, forty-five".

Divisors: 1 5 23 41 115 205 529 943 2645 4715 21689 29881 108445 149405 687263 1225121 3436315 6125605 15807049 28177783 79035245 140888915 648089009 3240445045