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2061345 = 351113312
BaseRepresentation
bin111110111010000100001
310212201122010
413313100201
51011430340
6112103133
723343516
oct7672041
93781563
102061345
1111887a0
12834aa9
13572340
143b930d
152aab80
hex1f7421

2061345 has 48 divisors (see below), whose sum is σ = 4003776. Its totient is φ = 892800.

The previous prime is 2061341. The next prime is 2061361. The reversal of 2061345 is 5431602.

It is a happy number.

It is not a de Polignac number, because 2061345 - 22 = 2061341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66480 + ... + 66510.

It is an arithmetic number, because the mean of its divisors is an integer number (83412).

22061345 is an apocalyptic number.

It is an amenable number.

2061345 is a deficient number, since it is larger than the sum of its proper divisors (1942431).

2061345 is a wasteful number, since it uses less digits than its factorization.

2061345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2061345 is about 1435.7384859368. The cubic root of 2061345 is about 127.2673188023.

Adding to 2061345 its reverse (5431602), we get a palindrome (7492947).

It can be divided in two parts, 206 and 1345, that added together give a palindrome (1551).

The spelling of 2061345 in words is "two million, sixty-one thousand, three hundred forty-five".

Divisors: 1 3 5 11 13 15 31 33 39 55 65 93 143 155 165 195 341 403 429 465 715 961 1023 1209 1705 2015 2145 2883 4433 4805 5115 6045 10571 12493 13299 14415 22165 31713 37479 52855 62465 66495 137423 158565 187395 412269 687115 2061345