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5152649 = 17303097
BaseRepresentation
bin10011101001111110001001
3100200210002212
4103221332021
52304341044
6302234505
761540205
oct23517611
910623085
105152649
1129aa297
121885a35
1310b5408
14981b05
156bba9e
hex4e9f89

5152649 has 4 divisors (see below), whose sum is σ = 5455764. Its totient is φ = 4849536.

The previous prime is 5152643. The next prime is 5152669. The reversal of 5152649 is 9462515.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9462515 = 51892503.

It can be written as a sum of positive squares in 2 ways, for example, as 2347024 + 2805625 = 1532^2 + 1675^2 .

It is a cyclic number.

It is not a de Polignac number, because 5152649 - 212 = 5148553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5152643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151532 + ... + 151565.

It is an arithmetic number, because the mean of its divisors is an integer number (1363941).

Almost surely, 25152649 is an apocalyptic number.

It is an amenable number.

5152649 is a deficient number, since it is larger than the sum of its proper divisors (303115).

5152649 is a wasteful number, since it uses less digits than its factorization.

5152649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303114.

The product of its digits is 10800, while the sum is 32.

The square root of 5152649 is about 2269.9447129831. The cubic root of 5152649 is about 172.7203541172.

The spelling of 5152649 in words is "five million, one hundred fifty-two thousand, six hundred forty-nine".

Divisors: 1 17 303097 5152649