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2001230310 = 235173923981
BaseRepresentation
bin111011101001000…
…0101100111100110
312011110200000220010
41313102011213212
513044303332220
6530325151050
7100410114462
oct16722054746
95143600803
102001230310
11937707a52
1247a25b486
1325b7b8361
1414dad94a2
15baa571e0
hex774859e6

2001230310 has 32 divisors (see below), whose sum is σ = 5085480672. Its totient is φ = 502269440.

The previous prime is 2001230281. The next prime is 2001230311. The reversal of 2001230310 is 130321002.

It is a happy number.

It is a super-2 number, since 2×20012303102 = 8009845507325392200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001230311) 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 15 ways as a sum of consecutive naturals, for example, 1961481 + ... + 1962500.

It is an arithmetic number, because the mean of its divisors is an integer number (158921271).

Almost surely, 22001230310 is an apocalyptic number.

2001230310 is an abundant number, since it is smaller than the sum of its proper divisors (3084250362).

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

2001230310 is a wasteful number, since it uses less digits than its factorization.

2001230310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924008.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2001230310 is about 44735.1127192053. The cubic root of 2001230310 is about 1260.1793458492.

Adding to 2001230310 its reverse (130321002), we get a palindrome (2131551312).

The spelling of 2001230310 in words is "two billion, one million, two hundred thirty thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 3923981 7847962 11771943 19619905 23543886 39239810 58859715 66707677 117719430 133415354 200123031 333538385 400246062 667076770 1000615155 2001230310