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5150749 = 38913241
BaseRepresentation
bin10011101001100000011101
3100200200111111
4103221200131
52304310444
6302222021
761531522
oct23514035
910620444
105150749
1129a891a
121884911
1310b45a6
14981149
156bb234
hex4e981d

5150749 has 4 divisors (see below), whose sum is σ = 5164380. Its totient is φ = 5137120.

The previous prime is 5150741. The next prime is 5150773. The reversal of 5150749 is 9470515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9470515 = 51894103.

It can be written as a sum of positive squares in 2 ways, for example, as 3667225 + 1483524 = 1915^2 + 1218^2 .

It is a cyclic number.

It is not a de Polignac number, because 5150749 - 23 = 5150741 is a prime.

It is a super-2 number, since 2×51507492 = 53060430522002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5150749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5150741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6232 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (1291095).

Almost surely, 25150749 is an apocalyptic number.

It is an amenable number.

5150749 is a deficient number, since it is larger than the sum of its proper divisors (13631).

5150749 is a wasteful number, since it uses less digits than its factorization.

5150749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13630.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 5150749 is about 2269.5261619995. The cubic root of 5150749 is about 172.6991217364.

The spelling of 5150749 in words is "five million, one hundred fifty thousand, seven hundred forty-nine".

Divisors: 1 389 13241 5150749