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30828255830 = 2529879103177
BaseRepresentation
bin11100101101100000…
…011101101001010110
32221120110210122202222
4130231200131221112
51001114013141310
622055020302342
72140644564611
oct345540355126
987513718688
1030828255830
111208a823989
125b843a19b2
132ba3b5c0c8
1416c644b178
15c066d3055
hex72d81da56

30828255830 has 16 divisors (see below), whose sum is σ = 55493255520. Its totient is φ = 12330770112.

The previous prime is 30828255803. The next prime is 30828255841. The reversal of 30828255830 is 3855282803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247202 + ... + 350378.

It is an arithmetic number, because the mean of its divisors is an integer number (3468328470).

Almost surely, 230828255830 is an apocalyptic number.

30828255830 is a deficient number, since it is larger than the sum of its proper divisors (24664999690).

30828255830 is a wasteful number, since it uses less digits than its factorization.

30828255830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133063.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 30828255830 in words is "thirty billion, eight hundred twenty-eight million, two hundred fifty-five thousand, eight hundred thirty".

Divisors: 1 2 5 10 29879 59758 103177 149395 206354 298790 515885 1031770 3082825583 6165651166 15414127915 30828255830