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30091867080 = 23351122796869
BaseRepresentation
bin11100000001100111…
…010111001111001000
32212200011011020022120
4130001213113033020
5443112004221310
621453553051240
72113463435622
oct340147271710
985604136276
1030091867080
1111842090140
1259b9856b20
132ab741bb12
14165671dc12
15bb1c23b70
hex7019d73c8

30091867080 has 64 divisors (see below), whose sum is σ = 98482478400. Its totient is φ = 7294997760.

The previous prime is 30091867049. The next prime is 30091867087. The reversal of 30091867080 is 8076819003.

It is not an unprimeable number, because it can be changed into a prime (30091867087) 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 15 ways as a sum of consecutive naturals, for example, 11397115 + ... + 11399754.

It is an arithmetic number, because the mean of its divisors is an integer number (1538788725).

Almost surely, 230091867080 is an apocalyptic number.

30091867080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30091867080 is an abundant number, since it is smaller than the sum of its proper divisors (68390611320).

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

30091867080 is a wasteful number, since it uses less digits than its factorization.

30091867080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22796894 (or 22796890 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 30091867080 in words is "thirty billion, ninety-one million, eight hundred sixty-seven thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 22796869 45593738 68390607 91187476 113984345 136781214 182374952 227968690 250765559 273562428 341953035 455937380 501531118 547124856 683906070 752296677 911874760 1003062236 1253827795 1367812140 1504593354 2006124472 2507655590 2735624280 3009186708 3761483385 5015311180 6018373416 7522966770 10030622360 15045933540 30091867080