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30312996 = 2237360869
BaseRepresentation
bin111001110100…
…0101000100100
32010001001121120
41303220220210
530230003441
63001413540
7515441040
oct163505044
963031546
1030312996
111612466a
12a19a2b0
1363845ac
144051020
1529db966
hex1ce8a24

30312996 has 24 divisors (see below), whose sum is σ = 80834880. Its totient is φ = 8660832.

The previous prime is 30312983. The next prime is 30313001. The reversal of 30312996 is 69921303.

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, 180351 + ... + 180518.

It is an arithmetic number, because the mean of its divisors is an integer number (3368120).

Almost surely, 230312996 is an apocalyptic number.

It is an amenable number.

30312996 is an abundant number, since it is smaller than the sum of its proper divisors (50521884).

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

30312996 is a wasteful number, since it uses less digits than its factorization.

30312996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360883 (or 360881 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 30312996 is about 5505.7239306017. The cubic root of 30312996 is about 311.8001267513.

The spelling of 30312996 in words is "thirty million, three hundred twelve thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 360869 721738 1082607 1443476 2165214 2526083 4330428 5052166 7578249 10104332 15156498 30312996