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128793464 = 2341392663
BaseRepresentation
bin1111010110100…
…11101101111000
322222100101102022
413223103231320
5230432342324
620440254012
73122504102
oct753235570
9288311368
10128793464
1166778488
1237171308
13208b5567
1413168572
15b49105e
hex7ad3b78

128793464 has 16 divisors (see below), whose sum is σ = 247378320. Its totient is φ = 62825920.

The previous prime is 128793449. The next prime is 128793517. The reversal of 128793464 is 464397821.

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 3 ways as a sum of consecutive naturals, for example, 196004 + ... + 196659.

It is an arithmetic number, because the mean of its divisors is an integer number (15461145).

Almost surely, 2128793464 is an apocalyptic number.

It is an amenable number.

128793464 is a deficient number, since it is larger than the sum of its proper divisors (118584856).

128793464 is a wasteful number, since it uses less digits than its factorization.

128793464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392710 (or 392706 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 128793464 is about 11348.7208089723. The cubic root of 128793464 is about 505.0076318162.

The spelling of 128793464 in words is "one hundred twenty-eight million, seven hundred ninety-three thousand, four hundred sixty-four".

Divisors: 1 2 4 8 41 82 164 328 392663 785326 1570652 3141304 16099183 32198366 64396732 128793464