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5213897 = 13401069
BaseRepresentation
bin10011111000111011001001
3100210220010022
4103320323021
52313321042
6303430225
762213603
oct23707311
910726108
105213897
112a41307
1218b5375
131107260
1499a173
156cecd2
hex4f8ec9

5213897 has 4 divisors (see below), whose sum is σ = 5614980. Its totient is φ = 4812816.

The previous prime is 5213891. The next prime is 5213899. The reversal of 5213897 is 7983125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1229881 + 3984016 = 1109^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 5213897 - 26 = 5213833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5213891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200522 + ... + 200547.

It is an arithmetic number, because the mean of its divisors is an integer number (1403745).

Almost surely, 25213897 is an apocalyptic number.

It is an amenable number.

5213897 is a deficient number, since it is larger than the sum of its proper divisors (401083).

5213897 is a wasteful number, since it uses less digits than its factorization.

5213897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401082.

The product of its digits is 15120, while the sum is 35.

The square root of 5213897 is about 2283.3959358815. The cubic root of 5213897 is about 173.4020187192.

The spelling of 5213897 in words is "five million, two hundred thirteen thousand, eight hundred ninety-seven".

Divisors: 1 13 401069 5213897