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5118257915 = 51723795731
BaseRepresentation
bin1001100010001001…
…00110101011111011
3111012200220102220222
410301010212223323
540440233223130
62203514010255
7240556321511
oct46104465373
914180812828
105118257915
112197139a21
12baa11698b
136374c58a4
14367a864b1
151ee515ce5
hex131126afb

5118257915 has 24 divisors (see below), whose sum is σ = 6700857072. Its totient is φ = 3749552640.

The previous prime is 5118257897. The next prime is 5118257927. The reversal of 5118257915 is 5197528115.

It is not a de Polignac number, because 5118257915 - 28 = 5118257659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5600 + ... + 101330.

It is an arithmetic number, because the mean of its divisors is an integer number (279202378).

Almost surely, 25118257915 is an apocalyptic number.

5118257915 is a deficient number, since it is larger than the sum of its proper divisors (1582599157).

5118257915 is a wasteful number, since it uses less digits than its factorization.

5118257915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95807 (or 95790 counting only the distinct ones).

The product of its digits is 126000, while the sum is 44.

The square root of 5118257915 is about 71542.0010553241. The cubic root of 5118257915 is about 1723.3522502487.

The spelling of 5118257915 in words is "five billion, one hundred eighteen million, two hundred fifty-seven thousand, nine hundred fifteen".

Divisors: 1 5 17 37 85 185 289 629 1445 3145 10693 53465 95731 478655 1627427 3542047 8137135 17710235 27666259 60214799 138331295 301073995 1023651583 5118257915