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BaseRepresentation
bin1111010010001100…
…1010000110111101
3101120221020201221012
43310203022012331
531400312412044
61515042245005
7203446465436
oct36443120675
911527221835
104102857149
111815a57336
12966056765
13505025831
142acc8a48d
151902e159e
hexf48ca1bd

4102857149 has 4 divisors (see below), whose sum is σ = 4106618880. Its totient is φ = 4099095420.

The previous prime is 4102857103. The next prime is 4102857193. The reversal of 4102857149 is 9417582014.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9417582014 = 24708791007.

It is a cyclic number.

It is not a de Polignac number, because 4102857149 - 28 = 4102856893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102857749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1879229 + ... + 1881410.

It is an arithmetic number, because the mean of its divisors is an integer number (1026654720).

Almost surely, 24102857149 is an apocalyptic number.

It is an amenable number.

4102857149 is a deficient number, since it is larger than the sum of its proper divisors (3761731).

4102857149 is a wasteful number, since it uses less digits than its factorization.

4102857149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761730.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 4102857149 is about 64053.5490741926. The cubic root of 4102857149 is about 1600.8923601585.

The spelling of 4102857149 in words is "four billion, one hundred two million, eight hundred fifty-seven thousand, one hundred forty-nine".

Divisors: 1 1091 3760639 4102857149