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5072989 = 7369493
BaseRepresentation
bin10011010110100001011101
3100112201211111
4103112201131
52244313424
6300422021
761056025
oct23264135
910481744
105072989
112955459
121847911
13108808c
14960a85
156a3194
hex4d685d

5072989 has 4 divisors (see below), whose sum is σ = 5142556. Its totient is φ = 5003424.

The previous prime is 5072983. The next prime is 5072993. The reversal of 5072989 is 9892705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9892705 = 51978541.

It can be written as a sum of positive squares in 2 ways, for example, as 4202500 + 870489 = 2050^2 + 933^2 .

It is a cyclic number.

It is not a de Polignac number, because 5072989 - 215 = 5040221 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5072983) 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, 34674 + ... + 34819.

It is an arithmetic number, because the mean of its divisors is an integer number (1285639).

Almost surely, 25072989 is an apocalyptic number.

It is an amenable number.

5072989 is a deficient number, since it is larger than the sum of its proper divisors (69567).

5072989 is an equidigital number, since it uses as much as digits as its factorization.

5072989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69566.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 5072989 is about 2252.3296827951. The cubic root of 5072989 is about 171.8256413198.

The spelling of 5072989 in words is "five million, seventy-two thousand, nine hundred eighty-nine".

Divisors: 1 73 69493 5072989