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19107941 is a prime number
BaseRepresentation
bin100100011100…
…1000001100101
31022221210011112
41020321001211
514342423231
61521314405
7321262166
oct110710145
938853145
1019107941
11a871096
126495a05
133c60398
14277576d
151a2692b
hex1239065

19107941 has 2 divisors, whose sum is σ = 19107942. Its totient is φ = 19107940.

The previous prime is 19107929. The next prime is 19107943. The reversal of 19107941 is 14970191.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12630916 + 6477025 = 3554^2 + 2545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-19107941 is a prime.

It is a super-2 number, since 2×191079412 = 730226818518962, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 19107943, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19107898 and 19107907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19107943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9553970 + 9553971.

It is an arithmetic number, because the mean of its divisors is an integer number (9553971).

Almost surely, 219107941 is an apocalyptic number.

It is an amenable number.

19107941 is a deficient number, since it is larger than the sum of its proper divisors (1).

19107941 is an equidigital number, since it uses as much as digits as its factorization.

19107941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 19107941 is about 4371.2630897717. The cubic root of 19107941 is about 267.3445266521.

The spelling of 19107941 in words is "nineteen million, one hundred seven thousand, nine hundred forty-one".