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30774500 = 2253611009
BaseRepresentation
bin111010101100…
…1010011100100
32010220111200022
41311121103210
530334241000
63015334312
7522402401
oct165312344
963814608
1030774500
111640a379
12a381398
1364b6683
1441312a8
152a7d585
hex1d594e4

30774500 has 48 divisors (see below), whose sum is σ = 68381040. Its totient is φ = 12096000.

The previous prime is 30774463. The next prime is 30774517. The reversal of 30774500 is 547703.

It can be written as a sum of positive squares in 8 ways, for example, as 21977344 + 8797156 = 4688^2 + 2966^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30774500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29996 + ... + 31004.

It is an arithmetic number, because the mean of its divisors is an integer number (1424605).

Almost surely, 230774500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30774500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34190520).

30774500 is an abundant number, since it is smaller than the sum of its proper divisors (37606540).

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

30774500 is a wasteful number, since it uses less digits than its factorization.

30774500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 30774500 is about 5547.4769039627. The cubic root of 30774500 is about 313.3745104578.

The spelling of 30774500 in words is "thirty million, seven hundred seventy-four thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 61 100 122 125 244 250 305 500 610 1009 1220 1525 2018 3050 4036 5045 6100 7625 10090 15250 20180 25225 30500 50450 61549 100900 123098 126125 246196 252250 307745 504500 615490 1230980 1538725 3077450 6154900 7693625 15387250 30774500