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30994512 = 2433132063
BaseRepresentation
bin111011000111…
…1000001010000
32011022200110220
41312033001100
530413311022
63024153040
7524310003
oct166170120
964280426
1030994512
111654a6aa
12a468780
136562863
14418b53a
152ac385c
hex1d8f050

30994512 has 40 divisors (see below), whose sum is σ = 80363904. Its totient is φ = 10293504.

The previous prime is 30994511. The next prime is 30994543. The reversal of 30994512 is 21549903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30994511) by changing a digit.

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, 13993 + ... + 16055.

Almost surely, 230994512 is an apocalyptic number.

It is an amenable number.

30994512 is an abundant number, since it is smaller than the sum of its proper divisors (49369392).

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

30994512 is a wasteful number, since it uses less digits than its factorization.

30994512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387 (or 2381 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 30994512 is about 5567.2715040673. The cubic root of 30994512 is about 314.1195266214.

The spelling of 30994512 in words is "thirty million, nine hundred ninety-four thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 313 626 939 1252 1878 2063 2504 3756 4126 5008 6189 7512 8252 12378 15024 16504 24756 33008 49512 99024 645719 1291438 1937157 2582876 3874314 5165752 7748628 10331504 15497256 30994512