Search a number
-
+
2958389 = 7422627
BaseRepresentation
bin1011010010010000110101
312120022010222
423102100311
51224132024
6143224125
734101020
oct13222065
95508128
102958389
111740755
12ba8045
137c7735
145701b7
153d685e
hex2d2435

2958389 has 4 divisors (see below), whose sum is σ = 3381024. Its totient is φ = 2535756.

The previous prime is 2958383. The next prime is 2958413. The reversal of 2958389 is 9838592.

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 2958389 - 212 = 2954293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2958383) 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, 211307 + ... + 211320.

It is an arithmetic number, because the mean of its divisors is an integer number (845256).

22958389 is an apocalyptic number.

It is an amenable number.

2958389 is a deficient number, since it is larger than the sum of its proper divisors (422635).

2958389 is an equidigital number, since it uses as much as digits as its factorization.

2958389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422634.

The product of its digits is 155520, while the sum is 44.

The square root of 2958389 is about 1719.9968023226. The cubic root of 2958389 is about 143.5550339887. Note that the first 3 decimals are identical.

The spelling of 2958389 in words is "two million, nine hundred fifty-eight thousand, three hundred eighty-nine".

Divisors: 1 7 422627 2958389