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5214987817 = 131997307709
BaseRepresentation
bin1001101101101011…
…00110011000101001
3111110102220211101221
410312311212120221
541140014102232
62221251142041
7243142444054
oct46665463051
914412824357
105214987817
1122367a7596
1210165a4921
13651562b10
14376865a9b
15207c71897
hex136d66629

5214987817 has 32 divisors (see below), whose sum is σ = 6000579200. Its totient is φ = 4492412928.

The previous prime is 5214987761. The next prime is 5214987821. The reversal of 5214987817 is 7187894125.

It is a cyclic number.

It is not a de Polignac number, because 5214987817 - 27 = 5214987689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5214985817) 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 31 ways as a sum of consecutive naturals, for example, 7355059 + ... + 7355767.

It is an arithmetic number, because the mean of its divisors is an integer number (187518100).

Almost surely, 25214987817 is an apocalyptic number.

It is an amenable number.

5214987817 is a deficient number, since it is larger than the sum of its proper divisors (785591383).

5214987817 is a wasteful number, since it uses less digits than its factorization.

5214987817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145.

The product of its digits is 1128960, while the sum is 52.

The square root of 5214987817 is about 72214.8725471423. The cubic root of 5214987817 is about 1734.1411054995.

The spelling of 5214987817 in words is "five billion, two hundred fourteen million, nine hundred eighty-seven thousand, eight hundred seventeen".

Divisors: 1 13 19 97 247 307 709 1261 1843 3991 5833 9217 13471 23959 29779 68773 75829 175123 217663 387127 565801 894049 1306687 2829619 4135597 7355413 16986931 21113311 53762761 274473043 401152909 5214987817