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2046132181 is a prime number
BaseRepresentation
bin111100111110101…
…0111111111010101
312021121011021200101
41321331113333111
513142302212211
6535011414101
7101463556642
oct17175277725
95247137611
102046132181
1195aa96435
124912b4331
13267baa102
14155a66dc9
15be9765c1
hex79f57fd5

2046132181 has 2 divisors, whose sum is σ = 2046132182. Its totient is φ = 2046132180.

The previous prime is 2046132107. The next prime is 2046132197. The reversal of 2046132181 is 1812316402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2040328900 + 5803281 = 45170^2 + 2409^2 .

It is a cyclic number.

It is not a de Polignac number, because 2046132181 - 217 = 2046001109 is a prime.

It is a super-2 number, since 2×20461321812 = 8373313804247633522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2046132281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023066090 + 1023066091.

It is an arithmetic number, because the mean of its divisors is an integer number (1023066091).

Almost surely, 22046132181 is an apocalyptic number.

It is an amenable number.

2046132181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2046132181 is an equidigital number, since it uses as much as digits as its factorization.

2046132181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2046132181 is about 45234.1926091314. The cubic root of 2046132181 is about 1269.5346593250.

Adding to 2046132181 its reverse (1812316402), we get a palindrome (3858448583).

The spelling of 2046132181 in words is "two billion, forty-six million, one hundred thirty-two thousand, one hundred eighty-one".