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20012301 = 3219373163
BaseRepresentation
bin100110001010…
…1110100001101
31101122201201100
41030111310031
520110343201
61552533313
7332046621
oct114256415
941581640
1020012301
11103295a1
126851239
1341b8bca
14292d181
151b54886
hex1315d0d

20012301 has 24 divisors (see below), whose sum is σ = 31260320. Its totient is φ = 12293856.

The previous prime is 20012287. The next prime is 20012303. The reversal of 20012301 is 10321002.

It is a happy number.

20012301 is a nontrivial binomial coefficient, being equal to C(6327, 2).

It is not a de Polignac number, because 20012301 - 217 = 19881229 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4746 + ... + 7908.

Almost surely, 220012301 is an apocalyptic number.

20012301 is the 6326-th triangular number.

It is an amenable number.

20012301 is a deficient number, since it is larger than the sum of its proper divisors (11248019).

20012301 is a wasteful number, since it uses less digits than its factorization.

20012301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225 (or 3222 counting only the distinct ones).

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

The square root of 20012301 is about 4473.5110372056. The cubic root of 20012301 is about 271.4974003394.

Adding to 20012301 its reverse (10321002), we get a palindrome (30333303).

The spelling of 20012301 in words is "twenty million, twelve thousand, three hundred one".

Divisors: 1 3 9 19 37 57 111 171 333 703 2109 3163 6327 9489 28467 60097 117031 180291 351093 540873 1053279 2223589 6670767 20012301