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4950149 = 16972917
BaseRepresentation
bin10010111000100010000101
3100022111022212
4102320202011
52231401044
6254033205
760034631
oct22704205
910274285
104950149
112881136
1217a8805
1310441a9
1492bdc1
1567ba9e
hex4b8885

4950149 has 4 divisors (see below), whose sum is σ = 4954764. Its totient is φ = 4945536.

The previous prime is 4950139. The next prime is 4950151. The reversal of 4950149 is 9410594.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9410594 = 24705297.

It can be written as a sum of positive squares in 2 ways, for example, as 4884100 + 66049 = 2210^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 4950149 - 24 = 4950133 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 (4950109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239 + ... + 3155.

It is an arithmetic number, because the mean of its divisors is an integer number (1238691).

Almost surely, 24950149 is an apocalyptic number.

It is an amenable number.

4950149 is a deficient number, since it is larger than the sum of its proper divisors (4615).

4950149 is a wasteful number, since it uses less digits than its factorization.

4950149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 4950149 is about 2224.8930311366. The cubic root of 4950149 is about 170.4274020639.

The spelling of 4950149 in words is "four million, nine hundred fifty thousand, one hundred forty-nine".

Divisors: 1 1697 2917 4950149