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30255250555 = 516768353051
BaseRepresentation
bin11100001011010110…
…100111110001111011
32220002112120222022101
4130023112213301323
5443430321004210
621522111004231
72120516246365
oct341326476173
986075528271
1030255250555
1111916333602
125a44509677
132b1222562a
1416702cdd35
15bc1248a3a
hex70b5a7c7b

30255250555 has 16 divisors (see below), whose sum is σ = 36577868544. Its totient is φ = 24023586400.

The previous prime is 30255250537. The next prime is 30255250579. The reversal of 30255250555 is 55505255203.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-30255250555 is a prime.

It is a super-2 number, since 2×302552505552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543780 + ... + 596830.

It is an arithmetic number, because the mean of its divisors is an integer number (2286116784).

Almost surely, 230255250555 is an apocalyptic number.

30255250555 is a deficient number, since it is larger than the sum of its proper divisors (6322617989).

30255250555 is a wasteful number, since it uses less digits than its factorization.

30255250555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53906.

The product of its (nonzero) digits is 187500, while the sum is 37.

The spelling of 30255250555 in words is "thirty billion, two hundred fifty-five million, two hundred fifty thousand, five hundred fifty-five".

Divisors: 1 5 167 683 835 3415 53051 114061 265255 570305 8859517 36233833 44297585 181169165 6051050111 30255250555