Search a number
-
+
5215312153 = 6249783449
BaseRepresentation
bin1001101101101101…
…10101100100011001
3111110110112022022101
410312312311210121
541140104442103
62221302123401
7243145264462
oct46666654431
914413468271
105215312153
1122369a9237
121016720561
1365164762c
1437690bd69
15207cd7a1d
hex136db5919

5215312153 has 4 divisors (see below), whose sum is σ = 5215458100. Its totient is φ = 5215166208.

The previous prime is 5215312103. The next prime is 5215312159. The reversal of 5215312153 is 3512135125.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1155456064 + 4059856089 = 33992^2 + 63717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5215312153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5215312159) 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, 20773 + ... + 104221.

It is an arithmetic number, because the mean of its divisors is an integer number (1303864525).

Almost surely, 25215312153 is an apocalyptic number.

It is an amenable number.

5215312153 is a deficient number, since it is larger than the sum of its proper divisors (145947).

5215312153 is an equidigital number, since it uses as much as digits as its factorization.

5215312153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145946.

The product of its digits is 4500, while the sum is 28.

The square root of 5215312153 is about 72217.1181438307. The cubic root of 5215312153 is about 1734.1770552626.

Adding to 5215312153 its reverse (3512135125), we get a palindrome (8727447278).

The spelling of 5215312153 in words is "five billion, two hundred fifteen million, three hundred twelve thousand, one hundred fifty-three".

Divisors: 1 62497 83449 5215312153