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128616014 = 2678831087
BaseRepresentation
bin1111010101010…
…00011001001110
322222000101000002
413222220121032
5230411203024
620432404302
73121134542
oct752503116
9288011002
10128616014
116666712a
12370a6692
1320852867
141311da22
15b4586ae
hex7aa864e

128616014 has 16 divisors (see below), whose sum is σ = 196205568. Its totient is φ = 63218232.

The previous prime is 128616013. The next prime is 128616031. The reversal of 128616014 is 410616821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128616013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117779 + ... + 118865.

It is an arithmetic number, because the mean of its divisors is an integer number (12262848).

Almost surely, 2128616014 is an apocalyptic number.

128616014 is a deficient number, since it is larger than the sum of its proper divisors (67589554).

128616014 is a wasteful number, since it uses less digits than its factorization.

128616014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 128616014 is about 11340.9000524650. The cubic root of 128616014 is about 504.7755941822.

The spelling of 128616014 in words is "one hundred twenty-eight million, six hundred sixteen thousand, fourteen".

Divisors: 1 2 67 134 883 1087 1766 2174 59161 72829 118322 145658 959821 1919642 64308007 128616014