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28350806 = 21129371201
BaseRepresentation
bin110110000100…
…1100101010110
31222100100222212
41230021211112
524224211211
62451353422
7462656261
oct154114526
958310885
1028350806
1115004420
1295b2872
135b48433
143a9dcd8
15275038b
hex1b09956

28350806 has 32 divisors (see below), whose sum is σ = 49330080. Its totient is φ = 12096000.

The previous prime is 28350767. The next prime is 28350811. The reversal of 28350806 is 60805382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23006 + ... + 24206.

It is an arithmetic number, because the mean of its divisors is an integer number (1541565).

Almost surely, 228350806 is an apocalyptic number.

28350806 is a deficient number, since it is larger than the sum of its proper divisors (20979274).

28350806 is a wasteful number, since it uses less digits than its factorization.

28350806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28350806 is about 5324.5474925105. The cubic root of 28350806 is about 304.9217966660.

The spelling of 28350806 in words is "twenty-eight million, three hundred fifty thousand, eight hundred six".

Divisors: 1 2 11 22 29 37 58 74 319 407 638 814 1073 1201 2146 2402 11803 13211 23606 26422 34829 44437 69658 88874 383119 488807 766238 977614 1288673 2577346 14175403 28350806