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30996285 = 352066419
BaseRepresentation
bin111011000111…
…1011100111101
32011022202220120
41312033130331
530413340120
63024205153
7524315115
oct166173475
964282816
1030996285
1116550a71
12a4697b9
1365635c8
14418c045
152ac4140
hex1d8f73d

30996285 has 8 divisors (see below), whose sum is σ = 49594080. Its totient is φ = 16531344.

The previous prime is 30996283. The next prime is 30996307. The reversal of 30996285 is 58269903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30996285 - 21 = 30996283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30996281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033195 + ... + 1033224.

It is an arithmetic number, because the mean of its divisors is an integer number (6199260).

Almost surely, 230996285 is an apocalyptic number.

It is an amenable number.

30996285 is a deficient number, since it is larger than the sum of its proper divisors (18597795).

30996285 is a wasteful number, since it uses less digits than its factorization.

30996285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066427.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 30996285 is about 5567.4307359859. The cubic root of 30996285 is about 314.1255161044.

The spelling of 30996285 in words is "thirty million, nine hundred ninety-six thousand, two hundred eighty-five".

Divisors: 1 3 5 15 2066419 6199257 10332095 30996285