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28412986 = 272029499
BaseRepresentation
bin110110001100…
…0110000111010
31222110112021211
41230120300322
524233203421
62452553334
7463335460
oct154306072
958415254
1028412986
1115047108
12962284a
135b6a824
143ab8830
1527639e1
hex1b18c3a

28412986 has 8 divisors (see below), whose sum is σ = 48708000. Its totient is φ = 12176988.

The previous prime is 28412977. The next prime is 28413029. The reversal of 28412986 is 68921482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1014736 + ... + 1014763.

It is an arithmetic number, because the mean of its divisors is an integer number (6088500).

Almost surely, 228412986 is an apocalyptic number.

28412986 is a deficient number, since it is larger than the sum of its proper divisors (20295014).

28412986 is a wasteful number, since it uses less digits than its factorization.

28412986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029508.

The product of its digits is 55296, while the sum is 40.

The square root of 28412986 is about 5330.3832882824. The cubic root of 28412986 is about 305.1445556815.

The spelling of 28412986 in words is "twenty-eight million, four hundred twelve thousand, nine hundred eighty-six".

Divisors: 1 2 7 14 2029499 4058998 14206493 28412986