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30575303221 = 1092396411831
BaseRepresentation
bin11100011110011011…
…100001101000110101
32220220211211100000211
4130132123201220311
51000104234200341
622013542505421
72131453534501
oct343633415065
986824740024
1030575303221
1111a6aa63941
125b13735271
132b636247c8
1416a0a03301
15bde3b9181
hex71e6e1a35

30575303221 has 16 divisors (see below), whose sum is σ = 31050201600. Its totient is φ = 30104524800.

The previous prime is 30575303197. The next prime is 30575303243. The reversal of 30575303221 is 12230357503.

It is a cyclic number.

It is not a de Polignac number, because 30575303221 - 27 = 30575303093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30575309221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16697776 + ... + 16699606.

It is an arithmetic number, because the mean of its divisors is an integer number (1940637600).

Almost surely, 230575303221 is an apocalyptic number.

It is an amenable number.

30575303221 is a deficient number, since it is larger than the sum of its proper divisors (474898379).

30575303221 is a wasteful number, since it uses less digits than its factorization.

30575303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820.

The product of its (nonzero) digits is 18900, while the sum is 31.

The spelling of 30575303221 in words is "thirty billion, five hundred seventy-five million, three hundred three thousand, two hundred twenty-one".

Divisors: 1 109 239 641 1831 26051 69869 153199 199579 437609 1173671 16698691 47699381 127930139 280507369 30575303221