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30027954 = 2311454969
BaseRepresentation
bin111001010001…
…1000010110010
32002111120121110
41302203002302
530141343304
62551334150
7513143025
oct162430262
962446543
1030027954
1115a4a4a0
12a081356
1362b4928
143db91bc
152982289
hex1ca30b2

30027954 has 16 divisors (see below), whose sum is σ = 65515680. Its totient is φ = 9099360.

The previous prime is 30027947. The next prime is 30027973. The reversal of 30027954 is 45972003.

It is a super-2 number, since 2×300279542 = 1803356042852232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227419 + ... + 227550.

It is an arithmetic number, because the mean of its divisors is an integer number (4094730).

Almost surely, 230027954 is an apocalyptic number.

30027954 is an abundant number, since it is smaller than the sum of its proper divisors (35487726).

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

30027954 is a wasteful number, since it uses less digits than its factorization.

30027954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454985.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 30027954 is about 5479.7768202729. The cubic root of 30027954 is about 310.8197312763.

Adding to 30027954 its reverse (45972003), we get a palindrome (75999957).

Subtracting 30027954 from its reverse (45972003), we obtain a square (15944049 = 39932).

The spelling of 30027954 in words is "thirty million, twenty-seven thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 66 454969 909938 1364907 2729814 5004659 10009318 15013977 30027954