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49415081 is a prime number
BaseRepresentation
bin1011110010000…
…0001110101001
310102222112202012
42330200032221
5100122240311
64523045305
71140010202
oct274401651
9112875665
1049415081
1125991311
1214670835
13a3120c1
1467c45a9
15451178b
hex2f203a9

49415081 has 2 divisors, whose sum is σ = 49415082. Its totient is φ = 49415080.

The previous prime is 49415021. The next prime is 49415089. The reversal of 49415081 is 18051494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39175081 + 10240000 = 6259^2 + 3200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49415081 is a prime.

It is a super-2 number, since 2×494150812 = 4883700460473122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49415089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24707540 + 24707541.

It is an arithmetic number, because the mean of its divisors is an integer number (24707541).

Almost surely, 249415081 is an apocalyptic number.

It is an amenable number.

49415081 is a deficient number, since it is larger than the sum of its proper divisors (1).

49415081 is an equidigital number, since it uses as much as digits as its factorization.

49415081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 49415081 is about 7029.5861186844. The cubic root of 49415081 is about 366.9609379635.

The spelling of 49415081 in words is "forty-nine million, four hundred fifteen thousand, eighty-one".