Search a number
-
+
30630774 = 2319893019
BaseRepresentation
bin111010011011…
…0001101110110
32010122012112010
41310312031312
530320141044
63012305050
7521233356
oct164661566
963565463
1030630774
1116321399
12a312186
136466125
1440d4b66
152a50bb9
hex1d36376

30630774 has 32 divisors (see below), whose sum is σ = 65232000. Its totient is φ = 9561024.

The previous prime is 30630773. The next prime is 30630781. The reversal of 30630774 is 47703603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30630773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8637 + ... + 11655.

It is an arithmetic number, because the mean of its divisors is an integer number (2038500).

Almost surely, 230630774 is an apocalyptic number.

30630774 is an abundant number, since it is smaller than the sum of its proper divisors (34601226).

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

30630774 is a wasteful number, since it uses less digits than its factorization.

30630774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132.

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 30630774 is about 5534.5075661706. The cubic root of 30630774 is about 312.8858985206.

The spelling of 30630774 in words is "thirty million, six hundred thirty thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 19 38 57 89 114 178 267 534 1691 3019 3382 5073 6038 9057 10146 18114 57361 114722 172083 268691 344166 537382 806073 1612146 5105129 10210258 15315387 30630774