Search a number
-
+
30125086 = 215062543
BaseRepresentation
bin111001011101…
…0110000011110
32002200111211221
41302322300132
530203000321
62553403554
7514026145
oct162726036
962614757
1030125086
1116006472
12a1095ba
136319bc4
14400275c
1529a0e41
hex1cbac1e

30125086 has 4 divisors (see below), whose sum is σ = 45187632. Its totient is φ = 15062542.

The previous prime is 30125083. The next prime is 30125111. The reversal of 30125086 is 68052103.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30125086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30125083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7531270 + ... + 7531273.

It is an arithmetic number, because the mean of its divisors is an integer number (11296908).

Almost surely, 230125086 is an apocalyptic number.

30125086 is a deficient number, since it is larger than the sum of its proper divisors (15062546).

30125086 is a wasteful number, since it uses less digits than its factorization.

30125086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15062545.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 30125086 is about 5488.6324344048. The cubic root of 30125086 is about 311.1545087514.

Adding to 30125086 its reverse (68052103), we get a palindrome (98177189).

The spelling of 30125086 in words is "thirty million, one hundred twenty-five thousand, eighty-six".

Divisors: 1 2 15062543 30125086