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4020297 = 331139311
BaseRepresentation
bin1111010101100001001001
321120020210220
433111201021
52012122142
6222100253
746112661
oct17254111
97506726
104020297
1122a6566
12141a689
13aa9b98
147691a1
155462ec
hex3d5849

4020297 has 16 divisors (see below), whose sum is σ = 5591040. Its totient is φ = 2566800.

The previous prime is 4020293. The next prime is 4020307. The reversal of 4020297 is 7920204.

4020297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4020297 - 22 = 4020293 is a prime.

4020297 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020293) 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 15 ways as a sum of consecutive naturals, for example, 12772 + ... + 13082.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

Almost surely, 24020297 is an apocalyptic number.

It is an amenable number.

4020297 is a deficient number, since it is larger than the sum of its proper divisors (1570743).

4020297 is a wasteful number, since it uses less digits than its factorization.

4020297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 4020297 is about 2005.0678292766. The cubic root of 4020297 is about 159.0081479943.

The spelling of 4020297 in words is "four million, twenty thousand, two hundred ninety-seven".

Divisors: 1 3 31 93 139 311 417 933 4309 9641 12927 28923 43229 129687 1340099 4020297