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30134736 = 2432209269
BaseRepresentation
bin111001011110…
…1000111010000
32002201000002100
41302331013100
530203302421
62553520400
7514066242
oct162750720
962630070
1030134736
1116012745
12a113100
136321408
144006092
1529a3c26
hex1cbd1d0

30134736 has 30 divisors (see below), whose sum is σ = 84335810. Its totient is φ = 10044864.

The previous prime is 30134729. The next prime is 30134747. The reversal of 30134736 is 63743103.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20250000 + 9884736 = 4500^2 + 3144^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 104491 + ... + 104778.

Almost surely, 230134736 is an apocalyptic number.

30134736 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30134736 is an abundant number, since it is smaller than the sum of its proper divisors (54201074).

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

30134736 is a wasteful number, since it uses less digits than its factorization.

30134736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209283 (or 209274 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 30134736 is about 5489.5114536724. The cubic root of 30134736 is about 311.1877293532.

Adding to 30134736 its reverse (63743103), we get a palindrome (93877839).

The spelling of 30134736 in words is "thirty million, one hundred thirty-four thousand, seven hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 209269 418538 627807 837076 1255614 1674152 1883421 2511228 3348304 3766842 5022456 7533684 10044912 15067368 30134736