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5121709501 = 7197123379
BaseRepresentation
bin1001100010100011…
…10001010110111101
3111012221101210121111
410301101301112331
540442124201001
62204120002021
7240630545446
oct46121612675
914187353544
105121709501
112199087177
12bab300311
1363813394c
143683042cd
151ee998851
hex1314715bd

5121709501 has 4 divisors (see below), whose sum is σ = 5128833600. Its totient is φ = 5114585404.

The previous prime is 5121709477. The next prime is 5121709531. The reversal of 5121709501 is 1059071215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1059071215 = 5211814243.

It is a cyclic number.

It is not a de Polignac number, because 5121709501 - 213 = 5121701309 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 (5121709531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3560971 + ... + 3562408.

It is an arithmetic number, because the mean of its divisors is an integer number (1282208400).

Almost surely, 25121709501 is an apocalyptic number.

It is an amenable number.

5121709501 is a deficient number, since it is larger than the sum of its proper divisors (7124099).

5121709501 is an equidigital number, since it uses as much as digits as its factorization.

5121709501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124098.

The product of its (nonzero) digits is 3150, while the sum is 31.

The square root of 5121709501 is about 71566.1197844343. The cubic root of 5121709501 is about 1723.7395540271.

The spelling of 5121709501 in words is "five billion, one hundred twenty-one million, seven hundred nine thousand, five hundred one".

Divisors: 1 719 7123379 5121709501