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2489910201 = 32166332
BaseRepresentation
bin1001010001101001…
…0000001110111001
320102112012112200100
42110122100032321
520044404111301
61051023230013
7115462613262
oct22432201671
96375175610
102489910201
111068542429
12595a48309
13308b08a5c
14198985969
15e88d6286
hex946903b9

2489910201 has 9 divisors (see below), whose sum is σ = 3596753199. Its totient is φ = 1659840336.

The previous prime is 2489910187. The next prime is 2489910221. The reversal of 2489910201 is 1020199842.

The square root of 2489910201 is 49899.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 353252025 + 2136658176 = 18795^2 + 46224^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2489910201 - 215 = 2489877433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2489910221) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 141381 + ... + 158013.

Almost surely, 22489910201 is an apocalyptic number.

2489910201 is the 49899-th square number.

2489910201 is the 24950-th centered octagonal number.

It is an amenable number.

2489910201 is a deficient number, since it is larger than the sum of its proper divisors (1106842998).

2489910201 is an frugal number, since it uses more digits than its factorization.

2489910201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33272 (or 16636 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The cubic root of 2489910201 is about 1355.3804845542.

Multiplying 2489910201 by its sum of digits (36), we get a square (89636767236 = 2993942).

The spelling of 2489910201 in words is "two billion, four hundred eighty-nine million, nine hundred ten thousand, two hundred one".

Divisors: 1 3 9 16633 49899 149697 276656689 829970067 2489910201