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2030245181 = 3349360617
BaseRepresentation
bin111100100000011…
…0001010100111101
312020111021010210222
41321000301110331
513124220321211
6533243111125
7101211541106
oct17100612475
95214233728
102030245181
11952025288
12487b124a5
13264806b13
141538cd3ad
15bd3891db
hex7903153d

2030245181 has 4 divisors (see below), whose sum is σ = 2030339292. Its totient is φ = 2030151072.

The previous prime is 2030245177. The next prime is 2030245183. The reversal of 2030245181 is 1815420302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1815420302 = 2907710151.

It can be written as a sum of positive squares in 2 ways, for example, as 1265224900 + 765020281 = 35570^2 + 27659^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030245181 - 22 = 2030245177 is a prime.

It is a super-2 number, since 2×20302451812 = 8243790989947445522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2030245181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030245183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3185 + ... + 63801.

It is an arithmetic number, because the mean of its divisors is an integer number (507584823).

Almost surely, 22030245181 is an apocalyptic number.

It is an amenable number.

2030245181 is a deficient number, since it is larger than the sum of its proper divisors (94111).

2030245181 is an equidigital number, since it uses as much as digits as its factorization.

2030245181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94110.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2030245181 is about 45058.2420984219. The cubic root of 2030245181 is about 1266.2403912401.

Adding to 2030245181 its reverse (1815420302), we get a palindrome (3845665483).

The spelling of 2030245181 in words is "two billion, thirty million, two hundred forty-five thousand, one hundred eighty-one".

Divisors: 1 33493 60617 2030245181