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305106630 = 23510170221
BaseRepresentation
bin10010001011111…
…000111011000110
3210021010000121120
4102023320323012
51111101403010
650135254410
710363235463
oct2213707306
9707100546
10305106630
11147252144
128621a406
134b29828a
142c74266a
151bbbbe70
hex122f8ec6

305106630 has 16 divisors (see below), whose sum is σ = 732255984. Its totient is φ = 81361760.

The previous prime is 305106623. The next prime is 305106631. The reversal of 305106630 is 36601503.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 305106630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305106631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5085081 + ... + 5085140.

It is an arithmetic number, because the mean of its divisors is an integer number (45765999).

Almost surely, 2305106630 is an apocalyptic number.

305106630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

305106630 is an abundant number, since it is smaller than the sum of its proper divisors (427149354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305106630 is a wasteful number, since it uses less digits than its factorization.

305106630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170231.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 305106630 is about 17467.3017378186. The cubic root of 305106630 is about 673.2099843214.

The spelling of 305106630 in words is "three hundred five million, one hundred six thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10170221 20340442 30510663 50851105 61021326 101702210 152553315 305106630