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30485 = 571367
BaseRepresentation
bin111011100010101
31112211002
413130111
51433420
6353045
7154610
oct73425
945732
1030485
11209a4
1215785
1310b50
14b177
159075
hex7715

30485 has 16 divisors (see below), whose sum is σ = 45696. Its totient is φ = 19008.

The previous prime is 30469. The next prime is 30491. The reversal of 30485 is 58403.

30485 = T23 + T24 + ... + T57.

It is a cyclic number.

It is not a de Polignac number, because 30485 - 24 = 30469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422 + ... + 488.

It is an arithmetic number, because the mean of its divisors is an integer number (2856).

230485 is an apocalyptic number.

30485 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30485 is a deficient number, since it is larger than the sum of its proper divisors (15211).

30485 is a wasteful number, since it uses less digits than its factorization.

30485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 30485 is about 174.5995418092. The cubic root of 30485 is about 31.2388760407.

Adding to 30485 its reverse (58403), we get a palindrome (88888).

It can be divided in two parts, 30 and 485, that added together give a palindrome (515).

The spelling of 30485 in words is "thirty thousand, four hundred eighty-five".

Divisors: 1 5 7 13 35 65 67 91 335 455 469 871 2345 4355 6097 30485