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128051006 = 2372776247
BaseRepresentation
bin1111010000111…
…10011100111110
322220221122221212
413220132130332
5230240113011
620412324422
73113262356
oct750363476
9286848855
10128051006
1166310686
1236a73712
13206b5635
1413013b66
15b39608b
hex7a1e73e

128051006 has 16 divisors (see below), whose sum is σ = 198011616. Its totient is φ = 62060256.

The previous prime is 128050999. The next prime is 128051039. The reversal of 128051006 is 600150821.

It is a super-2 number, since 2×1280510062 = 32794120275224072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17375 + ... + 23621.

It is an arithmetic number, because the mean of its divisors is an integer number (12375726).

Almost surely, 2128051006 is an apocalyptic number.

128051006 is a deficient number, since it is larger than the sum of its proper divisors (69960610).

128051006 is a wasteful number, since it uses less digits than its factorization.

128051006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 128051006 is about 11315.9624424969. The cubic root of 128051006 is about 504.0353522485.

The spelling of 128051006 in words is "one hundred twenty-eight million, fifty-one thousand, six".

Divisors: 1 2 37 74 277 554 6247 10249 12494 20498 231139 462278 1730419 3460838 64025503 128051006