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30889118208 = 2931331139359
BaseRepresentation
bin11100110001001000…
…101000101000000000
32221201201022210021010
4130301020220220000
51001230103240313
622105033000520
72142314113134
oct346110505000
987651283233
1030889118208
1112111113773
125ba0853140
132bb364b750
1416d05713c4
15c0bc064c3
hex731228a00

30889118208 has 320 divisors, whose sum is σ = 92394086400. Its totient is φ = 9106145280.

The previous prime is 30889118179. The next prime is 30889118209. The reversal of 30889118208 is 80281198803.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (30889118209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86041933 + ... + 86042291.

It is an arithmetic number, because the mean of its divisors is an integer number (288731520).

Almost surely, 230889118208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30889118208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46197043200).

30889118208 is an abundant number, since it is smaller than the sum of its proper divisors (61504968192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30889118208 is a wasteful number, since it uses less digits than its factorization.

30889118208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 48.

The spelling of 30889118208 in words is "thirty billion, eight hundred eighty-nine million, one hundred eighteen thousand, two hundred eight".