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5214543511 = 31168211081
BaseRepresentation
bin1001101101100111…
…11001111010010111
3111110102002020221011
410312303321322113
541134410343021
62221233433051
7243135613522
oct46663717227
914412066834
105214543511
1122365237a1
12101640b787
13651438808
1437678bbb9
15207bd4de1
hex136cf9e97

5214543511 has 4 divisors (see below), whose sum is σ = 5382754624. Its totient is φ = 5046332400.

The previous prime is 5214543497. The next prime is 5214543577. The reversal of 5214543511 is 1153454125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5214543511 - 217 = 5214412439 is a prime.

It is a super-2 number, since 2×52145435112 = 54382928056224414242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 168211081 = 5214543511 / (5 + 2 + 1 + 4 + 5 + 4 + 3 + 5 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5244543511) 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, 84105510 + ... + 84105571.

It is an arithmetic number, because the mean of its divisors is an integer number (1345688656).

Almost surely, 25214543511 is an apocalyptic number.

5214543511 is a deficient number, since it is larger than the sum of its proper divisors (168211113).

5214543511 is a wasteful number, since it uses less digits than its factorization.

5214543511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168211112.

The product of its digits is 12000, while the sum is 31.

The square root of 5214543511 is about 72211.7962039444. The cubic root of 5214543511 is about 1734.0918557084.

Adding to 5214543511 its reverse (1153454125), we get a palindrome (6367997636).

The spelling of 5214543511 in words is "five billion, two hundred fourteen million, five hundred forty-three thousand, five hundred eleven".

Divisors: 1 31 168211081 5214543511