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307830044 = 22229336059
BaseRepresentation
bin10010010110010…
…001110100011100
3210110020101102202
4102112101310130
51112301030134
650313511032
710425340454
oct2226216434
9713211382
10307830044
111488422a5
1287112478
134ba0ca72
142cc50d64
151c058d7e
hex12591d1c

307830044 has 12 divisors (see below), whose sum is σ = 541056600. Its totient is φ = 153242448.

The previous prime is 307830013. The next prime is 307830049. The reversal of 307830044 is 440038703.

It is a junction number, because it is equal to n+sod(n) for n = 307829989 and 307830016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307830049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167114 + ... + 168945.

It is an arithmetic number, because the mean of its divisors is an integer number (45088050).

Almost surely, 2307830044 is an apocalyptic number.

It is an amenable number.

307830044 is a deficient number, since it is larger than the sum of its proper divisors (233226556).

307830044 is a wasteful number, since it uses less digits than its factorization.

307830044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336292 (or 336290 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 307830044 is about 17545.0860356967. The cubic root of 307830044 is about 675.2071017003.

Adding to 307830044 its reverse (440038703), we get a palindrome (747868747).

The spelling of 307830044 in words is "three hundred seven million, eight hundred thirty thousand, forty-four".

Divisors: 1 2 4 229 458 916 336059 672118 1344236 76957511 153915022 307830044