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30722042057 = 7233731316477
BaseRepresentation
bin11100100111001011…
…010010100011001001
32221022001221102212112
4130213023102203021
51000404320321212
622040303552105
72135215022510
oct344713224311
987261842775
1030722042057
1112035878a03
125b548bb635
132b87b51215
1416b62bd677
15bec202422
hex7272d28c9

30722042057 has 32 divisors (see below), whose sum is σ = 37750175232. Its totient is φ = 24427713024.

The previous prime is 30722042053. The next prime is 30722042089. The reversal of 30722042057 is 75024022703.

It is a cyclic number.

It is not a de Polignac number, because 30722042057 - 22 = 30722042053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30722042053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1856303 + ... + 1872779.

It is an arithmetic number, because the mean of its divisors is an integer number (1179692976).

Almost surely, 230722042057 is an apocalyptic number.

30722042057 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

30722042057 is a deficient number, since it is larger than the sum of its proper divisors (7028133175).

30722042057 is a wasteful number, since it uses less digits than its factorization.

30722042057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16857.

The product of its (nonzero) digits is 23520, while the sum is 32.

The spelling of 30722042057 in words is "thirty billion, seven hundred twenty-two million, forty-two thousand, fifty-seven".

Divisors: 1 7 23 37 161 259 313 851 2191 5957 7199 11581 16477 50393 81067 115339 266363 378971 609649 1864541 2652797 4267543 5157301 14021927 36101107 98153489 118617923 190820137 830325461 1335740959 4388863151 30722042057