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2013201 = 33173431
BaseRepresentation
bin111101011100000010001
310210021121000
413223200101
51003410301
6111052213
723053251
oct7534021
93707530
102013201
111155603
12811069
13556458
143a5961
1529b786
hex1eb811

2013201 has 16 divisors (see below), whose sum is σ = 3006720. Its totient is φ = 1331280.

The previous prime is 2013197. The next prime is 2013227. The reversal of 2013201 is 1023102.

It is a happy number.

It is not a de Polignac number, because 2013201 - 22 = 2013197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

2013201 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2013241) 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, 4456 + ... + 4886.

It is an arithmetic number, because the mean of its divisors is an integer number (187920).

22013201 is an apocalyptic number.

It is an amenable number.

2013201 is a deficient number, since it is larger than the sum of its proper divisors (993519).

2013201 is a wasteful number, since it uses less digits than its factorization.

2013201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2013201 is about 1418.8731444354. The cubic root of 2013201 is about 126.2687009516.

Adding to 2013201 its reverse (1023102), we get a palindrome (3036303).

Subtracting from 2013201 its reverse (1023102), we obtain a palindrome (990099).

The spelling of 2013201 in words is "two million, thirteen thousand, two hundred one".

Divisors: 1 3 9 27 173 431 519 1293 1557 3879 4671 11637 74563 223689 671067 2013201