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5144781 = 33135479
BaseRepresentation
bin10011101000000011001101
3100200101022110
4103220003031
52304113111
6302134233
761505235
oct23500315
910611273
105144781
1129a4394
121881379
1310b1965
1497ccc5
156b95a6
hex4e80cd

5144781 has 8 divisors (see below), whose sum is σ = 6882880. Its totient is φ = 3418272.

The previous prime is 5144759. The next prime is 5144809. The reversal of 5144781 is 1874415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5144781 - 25 = 5144749 is a prime.

It is a super-2 number, since 2×51447812 = 52937543075922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5144701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801 + ... + 3678.

It is an arithmetic number, because the mean of its divisors is an integer number (860360).

Almost surely, 25144781 is an apocalyptic number.

It is an amenable number.

5144781 is a deficient number, since it is larger than the sum of its proper divisors (1738099).

5144781 is a wasteful number, since it uses less digits than its factorization.

5144781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795.

The product of its digits is 4480, while the sum is 30.

The square root of 5144781 is about 2268.2109690238. The cubic root of 5144781 is about 172.6323957333.

The spelling of 5144781 in words is "five million, one hundred forty-four thousand, seven hundred eighty-one".

Divisors: 1 3 313 939 5479 16437 1714927 5144781