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5215114123 = 17306771419
BaseRepresentation
bin1001101101101100…
…00101001110001011
3111110110011020122221
410312312011032023
541140032122443
62221253554511
7243143511232
oct46666051613
914413136587
105215114123
11223688347a
121016645a37
136515a845b
14376899b19
15207c98eed
hex136d8538b

5215114123 has 4 divisors (see below), whose sum is σ = 5521885560. Its totient is φ = 4908342688.

The previous prime is 5215114067. The next prime is 5215114127. The reversal of 5215114123 is 3214115125.

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 5215114123 - 217 = 5214983051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5215114127) 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 3 ways as a sum of consecutive naturals, for example, 153385693 + ... + 153385726.

It is an arithmetic number, because the mean of its divisors is an integer number (1380471390).

Almost surely, 25215114123 is an apocalyptic number.

5215114123 is a deficient number, since it is larger than the sum of its proper divisors (306771437).

5215114123 is a wasteful number, since it uses less digits than its factorization.

5215114123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306771436.

The product of its digits is 1200, while the sum is 25.

The square root of 5215114123 is about 72215.7470569958. The cubic root of 5215114123 is about 1734.1551055742.

Adding to 5215114123 its reverse (3214115125), we get a palindrome (8429229248).

The spelling of 5215114123 in words is "five billion, two hundred fifteen million, one hundred fourteen thousand, one hundred twenty-three".

Divisors: 1 17 306771419 5215114123