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30140120487 = 33710314091871
BaseRepresentation
bin11100000100011111…
…011011110110100111
32212210111221202112210
4130010133123312213
5443211332323422
621502435214503
72114620540251
oct340437336647
985714852483
1030140120487
1111867348694
125a11a47433
132ac4415229
14165ccc0cd1
15bb60a610c
hex7047dbda7

30140120487 has 32 divisors (see below), whose sum is σ = 41725532160. Its totient is φ = 19336458240.

The previous prime is 30140120459. The next prime is 30140120501. The reversal of 30140120487 is 78402104103.

It is not a de Polignac number, because 30140120487 - 211 = 30140118439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140120407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16108162 + ... + 16110032.

It is an arithmetic number, because the mean of its divisors is an integer number (1303922880).

Almost surely, 230140120487 is an apocalyptic number.

30140120487 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

30140120487 is a deficient number, since it is larger than the sum of its proper divisors (11585411673).

30140120487 is a wasteful number, since it uses less digits than its factorization.

30140120487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423.

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 30140120487 in words is "thirty billion, one hundred forty million, one hundred twenty thousand, four hundred eighty-seven".

Divisors: 1 3 37 103 111 309 1409 1871 3811 4227 5613 11433 52133 69227 145127 156399 192713 207681 435381 578139 2636239 5369699 7130381 7908717 16109097 21391143 97540843 271532617 292622529 814597851 10046706829 30140120487