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145730030 = 2514573003
BaseRepresentation
bin10001010111110…
…10100111101110
3101011012212000112
420223322213232
5244301330110
622243300022
73416453615
oct1053724756
9334185015
10145730030
1175296146
124097a612
13242654b4
14154d687c
15cbd9405
hex8afa9ee

145730030 has 8 divisors (see below), whose sum is σ = 262314072. Its totient is φ = 58292008.

The previous prime is 145730029. The next prime is 145730063. The reversal of 145730030 is 30037541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 145729978 and 145730005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7286492 + ... + 7286511.

It is an arithmetic number, because the mean of its divisors is an integer number (32789259).

Almost surely, 2145730030 is an apocalyptic number.

145730030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145730030 is a deficient number, since it is larger than the sum of its proper divisors (116584042).

145730030 is a wasteful number, since it uses less digits than its factorization.

145730030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14573010.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 145730030 is about 12071.8693664237. The cubic root of 145730030 is about 526.2389845416.

Adding to 145730030 its reverse (30037541), we get a palindrome (175767571).

The spelling of 145730030 in words is "one hundred forty-five million, seven hundred thirty thousand, thirty".

Divisors: 1 2 5 10 14573003 29146006 72865015 145730030