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305025012 = 223219445943
BaseRepresentation
bin10010001011100…
…100111111110100
3210020221212122200
4102023210333310
51111041300022
650133424500
710362445515
oct2213447764
9706855580
10305025012
111471a6896
128619b130
134b26a096
142c720a0c
151bba2bac
hex122e4ff4

305025012 has 36 divisors (see below), whose sum is σ = 811618080. Its totient is φ = 96323472.

The previous prime is 305024981. The next prime is 305025037. The reversal of 305025012 is 210520503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222288 + ... + 223655.

Almost surely, 2305025012 is an apocalyptic number.

It is an amenable number.

305025012 is an abundant number, since it is smaller than the sum of its proper divisors (506593068).

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

305025012 is a wasteful number, since it uses less digits than its factorization.

305025012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445972 (or 445967 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 305025012 is about 17464.9652733694. The cubic root of 305025012 is about 673.1499496239.

Adding to 305025012 its reverse (210520503), we get a palindrome (515545515).

The spelling of 305025012 in words is "three hundred five million, twenty-five thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 445943 891886 1337829 1783772 2675658 4013487 5351316 8026974 8472917 16053948 16945834 25418751 33891668 50837502 76256253 101675004 152512506 305025012