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30305277805 = 511739745609
BaseRepresentation
bin11100001110010101…
…011101011101101101
32220020000201121210111
4130032111131131231
5444031122342210
621531055140021
72121664416415
oct341625353555
986200647714
1030305277805
11119415a2840
125a59214611
132b1c6c025a
141676bd3645
15bc582b88a
hex70e55d76d

30305277805 has 16 divisors (see below), whose sum is σ = 39726100800. Its totient is φ = 22010348160.

The previous prime is 30305277713. The next prime is 30305277809. The reversal of 30305277805 is 50877250303.

It is not a de Polignac number, because 30305277805 - 29 = 30305277293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30305277809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332160 + ... + 413449.

It is an arithmetic number, because the mean of its divisors is an integer number (2482881300).

Almost surely, 230305277805 is an apocalyptic number.

It is an amenable number.

30305277805 is a deficient number, since it is larger than the sum of its proper divisors (9420822995).

30305277805 is a wasteful number, since it uses less digits than its factorization.

30305277805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746364.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 30305277805 in words is "thirty billion, three hundred five million, two hundred seventy-seven thousand, eight hundred five".

Divisors: 1 5 11 55 739 3695 8129 40645 745609 3728045 8201699 41008495 551005051 2755025255 6061055561 30305277805