Search a number
-
+
30258113 = 171779889
BaseRepresentation
bin111001101101…
…1001111000001
32002221021022212
41303123033001
530221224423
63000311505
7515122034
oct163331701
962837285
1030258113
1116097406
12a172595
136365612
14403901b
1529ca578
hex1cdb3c1

30258113 has 4 divisors (see below), whose sum is σ = 32038020. Its totient is φ = 28478208.

The previous prime is 30258103. The next prime is 30258143. The reversal of 30258113 is 31185203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31185203 = 74455029.

It can be written as a sum of positive squares in 2 ways, for example, as 17783089 + 12475024 = 4217^2 + 3532^2 .

It is a cyclic number.

It is not a de Polignac number, because 30258113 - 24 = 30258097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30258103) 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, 889928 + ... + 889961.

It is an arithmetic number, because the mean of its divisors is an integer number (8009505).

Almost surely, 230258113 is an apocalyptic number.

It is an amenable number.

30258113 is a deficient number, since it is larger than the sum of its proper divisors (1779907).

30258113 is a wasteful number, since it uses less digits than its factorization.

30258113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779906.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 30258113 is about 5500.7374960091. The cubic root of 30258113 is about 311.6118371651.

The spelling of 30258113 in words is "thirty million, two hundred fifty-eight thousand, one hundred thirteen".

Divisors: 1 17 1779889 30258113