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31396049 is a prime number
BaseRepresentation
bin111011111000…
…1000011010001
32012002002021122
41313301003101
531014133144
63040532025
7530601446
oct167610321
965062248
1031396049
11167a4353
12a621015
136673559
1442539cd
152b527ee
hex1df10d1

31396049 has 2 divisors, whose sum is σ = 31396050. Its totient is φ = 31396048.

The previous prime is 31396019. The next prime is 31396061. The reversal of 31396049 is 94069313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20539024 + 10857025 = 4532^2 + 3295^2 .

It is a cyclic number.

It is not a de Polignac number, because 31396049 - 216 = 31330513 is a prime.

It is not a weakly prime, because it can be changed into another prime (31396019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15698024 + 15698025.

It is an arithmetic number, because the mean of its divisors is an integer number (15698025).

Almost surely, 231396049 is an apocalyptic number.

It is an amenable number.

31396049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31396049 is an equidigital number, since it uses as much as digits as its factorization.

31396049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 31396049 is about 5603.2177362655. The cubic root of 31396049 is about 315.4701939137.

The spelling of 31396049 in words is "thirty-one million, three hundred ninety-six thousand, forty-nine".