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30711551155 = 531069197699
BaseRepresentation
bin11100100110100011…
…010001010010110011
32221021100012110001121
4130212203101102303
51000344124114110
622035251043111
72135026610005
oct344643212263
987240173047
1030711551155
111202a962a3a
125b512a0497
132b8591a09c
1416b4b4c375
15beb32dcda
hex7268d14b3

30711551155 has 8 divisors (see below), whose sum is σ = 36855234000. Its totient is φ = 24568325856.

The previous prime is 30711551089. The next prime is 30711551191. The reversal of 30711551155 is 55115511703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30711551155 - 233 = 22121616563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30711551155.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56496 + ... + 254194.

It is an arithmetic number, because the mean of its divisors is an integer number (4606904250).

Almost surely, 230711551155 is an apocalyptic number.

30711551155 is a deficient number, since it is larger than the sum of its proper divisors (6143682845).

30711551155 is a wasteful number, since it uses less digits than its factorization.

30711551155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228773.

The product of its (nonzero) digits is 13125, while the sum is 34.

The spelling of 30711551155 in words is "thirty billion, seven hundred eleven million, five hundred fifty-one thousand, one hundred fifty-five".

Divisors: 1 5 31069 155345 197699 988495 6142310231 30711551155