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128480012 = 2232120003
BaseRepresentation
bin1111010100001…
…11001100001100
322221202110102222
413222013030030
5230342330022
620425434512
73120030203
oct752071414
9287673388
10128480012
1166583a31
123703ba38
132080599b
14130c623a
15b42d242
hex7a8730c

128480012 has 6 divisors (see below), whose sum is σ = 224840028. Its totient is φ = 64240004.

The previous prime is 128479987. The next prime is 128480039. The reversal of 128480012 is 210084821.

It is a super-2 number, since 2×1284800122 = 33014226967040288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16059998 + ... + 16060005.

It is an arithmetic number, because the mean of its divisors is an integer number (37473338).

Almost surely, 2128480012 is an apocalyptic number.

It is an amenable number.

128480012 is a deficient number, since it is larger than the sum of its proper divisors (96360016).

128480012 is a wasteful number, since it uses less digits than its factorization.

128480012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32120007 (or 32120005 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 128480012 is about 11334.9023815823. The cubic root of 128480012 is about 504.5976103784.

The spelling of 128480012 in words is "one hundred twenty-eight million, four hundred eighty thousand, twelve".

Divisors: 1 2 4 32120003 64240006 128480012