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5120879769 = 322953370193
BaseRepresentation
bin1001100010011101…
…00110110010011001
3111012212211122102200
410301032212302121
540441421123034
62204050120413
7240620521425
oct46116466231
914185748380
105120879769
11219866a845
12baab80109
13637c03095
14368169b85
151ee882a99
hex1313a6c99

5120879769 has 24 divisors (see below), whose sum is σ = 7796285640. Its totient is φ = 3233997312.

The previous prime is 5120879749. The next prime is 5120879773. The reversal of 5120879769 is 9679780215.

It can be written as a sum of positive squares in 4 ways, for example, as 3012692544 + 2108187225 = 54888^2 + 45915^2 .

It is not a de Polignac number, because 5120879769 - 219 = 5120355481 is a prime.

It is a super-2 number, since 2×51208797692 = 52446819217106986722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5120879749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171264 + ... + 198929.

It is an arithmetic number, because the mean of its divisors is an integer number (324845235).

Almost surely, 25120879769 is an apocalyptic number.

It is an amenable number.

5120879769 is a deficient number, since it is larger than the sum of its proper divisors (2675405871).

5120879769 is a wasteful number, since it uses less digits than its factorization.

5120879769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370281 (or 370278 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The square root of 5120879769 is about 71560.3225887083. The cubic root of 5120879769 is about 1723.6464653745.

The spelling of 5120879769 in words is "five billion, one hundred twenty million, eight hundred seventy-nine thousand, seven hundred sixty-nine".

Divisors: 1 3 9 29 53 87 159 261 477 1537 4611 13833 370193 1110579 3331737 10735597 19620229 32206791 58860687 96620373 176582061 568986641 1706959923 5120879769