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49162681 is a prime number
BaseRepresentation
bin1011101110001…
…0100110111001
310102111201112001
42323202212321
5100041201211
64513421001
71134606301
oct273424671
9112451461
1049162681
1125829717
121456a761
13a254259
14675a601
1544b1ac1
hex2ee29b9

49162681 has 2 divisors, whose sum is σ = 49162682. Its totient is φ = 49162680.

The previous prime is 49162679. The next prime is 49162693. The reversal of 49162681 is 18626194.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38378025 + 10784656 = 6195^2 + 3284^2 .

It is a cyclic number.

It is not a de Polignac number, because 49162681 - 21 = 49162679 is a prime.

It is a super-2 number, since 2×491626812 = 4833938406215522, which contains 22 as substring.

Together with 49162679, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 49162681.

It is not a weakly prime, because it can be changed into another prime (49162651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24581340 + 24581341.

It is an arithmetic number, because the mean of its divisors is an integer number (24581341).

Almost surely, 249162681 is an apocalyptic number.

It is an amenable number.

49162681 is a deficient number, since it is larger than the sum of its proper divisors (1).

49162681 is an equidigital number, since it uses as much as digits as its factorization.

49162681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 49162681 is about 7011.6104426872. The cubic root of 49162681 is about 366.3350893169.

The spelling of 49162681 in words is "forty-nine million, one hundred sixty-two thousand, six hundred eighty-one".