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28746105 = 352966083
BaseRepresentation
bin110110110101…
…0000101111001
32000002110020120
41231222011321
524324333410
62504043453
7466223613
oct155520571
960073216
1028746105
1115254413
129763589
135c5633b
143b63db3
1527cc570
hex1b6a179

28746105 has 16 divisors (see below), whose sum is σ = 47580480. Its totient is φ = 14802368.

The previous prime is 28746103. The next prime is 28746119. The reversal of 28746105 is 50164782.

It is a cyclic number.

It is not a de Polignac number, because 28746105 - 21 = 28746103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28746101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32607 + ... + 33476.

It is an arithmetic number, because the mean of its divisors is an integer number (2973780).

Almost surely, 228746105 is an apocalyptic number.

It is an amenable number.

28746105 is a deficient number, since it is larger than the sum of its proper divisors (18834375).

28746105 is a wasteful number, since it uses less digits than its factorization.

28746105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66120.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 28746105 is about 5361.5394244564. The cubic root of 28746105 is about 306.3324487160.

The spelling of 28746105 in words is "twenty-eight million, seven hundred forty-six thousand, one hundred five".

Divisors: 1 3 5 15 29 87 145 435 66083 198249 330415 991245 1916407 5749221 9582035 28746105