Search a number
-
+
28600146 = 23212712511
BaseRepresentation
bin110110100011…
…0011101010010
31222211001000200
41231012131102
524310201041
62501000030
7465045231
oct155063522
958731020
1028600146
1115164793
1296b3016
135c04a83
143b26b18
15279e1b6
hex1b46752

28600146 has 24 divisors (see below), whose sum is σ = 62459904. Its totient is φ = 9457560.

The previous prime is 28600129. The next prime is 28600153. The reversal of 28600146 is 64100682.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3970 + ... + 8541.

It is an arithmetic number, because the mean of its divisors is an integer number (2602496).

Almost surely, 228600146 is an apocalyptic number.

28600146 is an abundant number, since it is smaller than the sum of its proper divisors (33859758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28600146 is a wasteful number, since it uses less digits than its factorization.

28600146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12646 (or 12643 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28600146 is about 5347.9104330570. The cubic root of 28600146 is about 305.8130987330.

The spelling of 28600146 in words is "twenty-eight million, six hundred thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 127 254 381 762 1143 2286 12511 25022 37533 75066 112599 225198 1588897 3177794 4766691 9533382 14300073 28600146