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30506084 = 2271089503
BaseRepresentation
bin111010001011…
…1110001100100
32010101212110222
41310113301210
530302143314
63005503512
7520204010
oct164276144
963355428
1030506084
1116246744
12a271b98
13642144b
1440a1540
152a28c8e
hex1d17c64

30506084 has 12 divisors (see below), whose sum is σ = 61012224. Its totient is φ = 13074024.

The previous prime is 30506071. The next prime is 30506107. The reversal of 30506084 is 48060503.

30506084 is an admirable number.

It is a super-2 number, since 2×305060842 = 1861242322030112, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 544724 + ... + 544779.

It is an arithmetic number, because the mean of its divisors is an integer number (5084352).

Almost surely, 230506084 is an apocalyptic number.

It is an amenable number.

30506084 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30506084 is a wasteful number, since it uses less digits than its factorization.

30506084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089514 (or 1089512 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 30506084 is about 5523.2313006066. The cubic root of 30506084 is about 312.4607617934.

Adding to 30506084 its reverse (48060503), we get a palindrome (78566587).

The spelling of 30506084 in words is "thirty million, five hundred six thousand, eighty-four".

Divisors: 1 2 4 7 14 28 1089503 2179006 4358012 7626521 15253042 30506084