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5209961 = 23921799
BaseRepresentation
bin10011110111111101101001
3100210200201112
4103313331221
52313204321
6303400105
762166251
oct23677551
910720645
105209961
112a39359
1218b3035
131105523
14998961
156cda5b
hex4f7f69

5209961 has 4 divisors (see below), whose sum is σ = 5232000. Its totient is φ = 5187924.

The previous prime is 5209957. The next prime is 5209999. The reversal of 5209961 is 1699025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5209961 - 22 = 5209957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5209901) 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, 10661 + ... + 11138.

It is an arithmetic number, because the mean of its divisors is an integer number (1308000).

Almost surely, 25209961 is an apocalyptic number.

It is an amenable number.

5209961 is a deficient number, since it is larger than the sum of its proper divisors (22039).

5209961 is a wasteful number, since it uses less digits than its factorization.

5209961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22038.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 5209961 is about 2282.5338989816. The cubic root of 5209961 is about 173.3583736835.

The spelling of 5209961 in words is "five million, two hundred nine thousand, nine hundred sixty-one".

Divisors: 1 239 21799 5209961