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2005313530 = 251119339431
BaseRepresentation
bin111011110000110…
…1010011111111010
312011202100111000111
41313201222133322
513101330013110
6530552454534
7100456612063
oct16741523772
95152314014
102005313530
11939a46810
1247b6aa44a
1325c5b7a6c
1415047d56a
15bb0b1e8a
hex7786a7fa

2005313530 has 32 divisors (see below), whose sum is σ = 3940161408. Its totient is φ = 728750400.

The previous prime is 2005313521. The next prime is 2005313539. The reversal of 2005313530 is 353135002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2005313521) and next prime (2005313539).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2005313539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207915 + ... + 217345.

It is an arithmetic number, because the mean of its divisors is an integer number (123130044).

Almost surely, 22005313530 is an apocalyptic number.

2005313530 is a deficient number, since it is larger than the sum of its proper divisors (1934847878).

2005313530 is a wasteful number, since it uses less digits than its factorization.

2005313530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 2005313530 is about 44780.7272160692. The cubic root of 2005313530 is about 1261.0358346193.

Adding to 2005313530 its reverse (353135002), we get a palindrome (2358448532).

The spelling of 2005313530 in words is "two billion, five million, three hundred thirteen thousand, five hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 1933 3866 9431 9665 18862 19330 21263 42526 47155 94310 103741 106315 207482 212630 518705 1037410 18230123 36460246 91150615 182301230 200531353 401062706 1002656765 2005313530