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5121382247 = 6776438541
BaseRepresentation
bin1001100010100001…
…00001011101100111
3111012220210011200222
410301100201131213
540442033212442
62204104554555
7240625013402
oct46120413547
914186704628
105121382247
112198983313
12bab182a5b
1363804a9c7
1436825ad39
151ee9318d2
hex131421767

5121382247 has 4 divisors (see below), whose sum is σ = 5197820856. Its totient is φ = 5044943640.

The previous prime is 5121382199. The next prime is 5121382267. The reversal of 5121382247 is 7422831215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7422831215 = 51484566243.

It is a cyclic number.

It is not a de Polignac number, because 5121382247 - 232 = 826414951 is a prime.

It is a super-2 number, since 2×51213822472 = 52457112239773538018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121382267) 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, 38219204 + ... + 38219337.

It is an arithmetic number, because the mean of its divisors is an integer number (1299455214).

Almost surely, 25121382247 is an apocalyptic number.

5121382247 is a deficient number, since it is larger than the sum of its proper divisors (76438609).

5121382247 is an equidigital number, since it uses as much as digits as its factorization.

5121382247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76438608.

The product of its digits is 26880, while the sum is 35.

The square root of 5121382247 is about 71563.8333727309. The cubic root of 5121382247 is about 1723.7028401995.

The spelling of 5121382247 in words is "five billion, one hundred twenty-one million, three hundred eighty-two thousand, two hundred forty-seven".

Divisors: 1 67 76438541 5121382247