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30054589 = 171767917
BaseRepresentation
bin111001010100…
…1100010111101
32002112221010221
41302221202331
530143221324
62552101341
7513313465
oct162514275
962487127
1030054589
1115a68504
12a094851
1362c3aa6
143dc4ba5
15298a0e4
hex1ca98bd

30054589 has 4 divisors (see below), whose sum is σ = 31822524. Its totient is φ = 28286656.

The previous prime is 30054581. The next prime is 30054613. The reversal of 30054589 is 98545003.

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 14976900 + 15077689 = 3870^2 + 3883^2 .

It is a cyclic number.

It is not a de Polignac number, because 30054589 - 23 = 30054581 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 (30054581) 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, 883942 + ... + 883975.

It is an arithmetic number, because the mean of its divisors is an integer number (7955631).

Almost surely, 230054589 is an apocalyptic number.

It is an amenable number.

30054589 is a deficient number, since it is larger than the sum of its proper divisors (1767935).

30054589 is a wasteful number, since it uses less digits than its factorization.

30054589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767934.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 30054589 is about 5482.2065812955. The cubic root of 30054589 is about 310.9116038583.

The spelling of 30054589 in words is "thirty million, fifty-four thousand, five hundred eighty-nine".

Divisors: 1 17 1767917 30054589