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30088931166 = 23672948161
BaseRepresentation
bin11100000001011100…
…001010011101011110
32212122221122002000000
4130001130022131132
5443110231244131
621453410115130
72113426460250
oct340134123536
985587562000
1030088931166
1111840465368
1259b887baa6
132ab69316a8
141656197cd0
15bb1843ce6
hex70170a75e

30088931166 has 56 divisors (see below), whose sum is σ = 77336185584. Its totient is φ = 8596834560.

The previous prime is 30088931153. The next prime is 30088931167. The reversal of 30088931166 is 66113988003.

It is a happy number.

It is a super-2 number, since 2×300889311662 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30088931167) 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 27 ways as a sum of consecutive naturals, for example, 1463875 + ... + 1484286.

It is an arithmetic number, because the mean of its divisors is an integer number (1381003314).

Almost surely, 230088931166 is an apocalyptic number.

30088931166 is an abundant number, since it is smaller than the sum of its proper divisors (47247254418).

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

30088931166 is an equidigital number, since it uses as much as digits as its factorization.

30088931166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948188 (or 2948173 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 30088931166 in words is "thirty billion, eighty-eight million, nine hundred thirty-one thousand, one hundred sixty-six".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 243 378 486 567 729 1134 1458 1701 3402 5103 10206 2948161 5896322 8844483 17688966 20637127 26533449 41274254 53066898 61911381 79600347 123822762 159200694 185734143 238801041 371468286 477602082 557202429 716403123 1114404858 1432806246 1671607287 2149209369 3343214574 4298418738 5014821861 10029643722 15044465583 30088931166