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190749103 is a prime number
BaseRepresentation
bin10110101111010…
…01100110101111
3111021221001120121
423113221212233
5342312432403
630532225411
74504224556
oct1327514657
9437831517
10190749103
1198744696
1253a6b267
13306986bc
141b494d9d
1511b2d3bd
hexb5e99af

190749103 has 2 divisors, whose sum is σ = 190749104. Its totient is φ = 190749102.

The previous prime is 190749101. The next prime is 190749121. The reversal of 190749103 is 301947091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190749103 - 21 = 190749101 is a prime.

Together with 190749101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190749101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95374551 + 95374552.

It is an arithmetic number, because the mean of its divisors is an integer number (95374552).

Almost surely, 2190749103 is an apocalyptic number.

190749103 is a deficient number, since it is larger than the sum of its proper divisors (1).

190749103 is an equidigital number, since it uses as much as digits as its factorization.

190749103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 190749103 is about 13811.1948433146. The cubic root of 190749103 is about 575.6442462667.

The spelling of 190749103 in words is "one hundred ninety million, seven hundred forty-nine thousand, one hundred three".