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128360516 = 22231395223
BaseRepresentation
bin1111010011010…
…10000001000100
322221112101112012
413221222001010
5230330014031
620423113352
73116021624
oct751520104
9287471465
10128360516
1166502179
1236ba2858
132079348b
1413094884
15b407b2b
hex7a6a044

128360516 has 12 divisors (see below), whose sum is σ = 234397632. Its totient is φ = 61389768.

The previous prime is 128360513. The next prime is 128360521. The reversal of 128360516 is 615063821.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128360513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697520 + ... + 697703.

It is an arithmetic number, because the mean of its divisors is an integer number (19533136).

Almost surely, 2128360516 is an apocalyptic number.

It is an amenable number.

128360516 is a deficient number, since it is larger than the sum of its proper divisors (106037116).

128360516 is a wasteful number, since it uses less digits than its factorization.

128360516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395250 (or 1395248 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 128360516 is about 11329.6300027847. The cubic root of 128360516 is about 504.4411240413.

The spelling of 128360516 in words is "one hundred twenty-eight million, three hundred sixty thousand, five hundred sixteen".

Divisors: 1 2 4 23 46 92 1395223 2790446 5580892 32090129 64180258 128360516