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28465066 = 272970111
BaseRepresentation
bin110110010010…
…1011110101010
31222120011201201
41230211132222
524241340231
62454034414
7463643350
oct154453652
958504651
1028465066
1115082253
129648a0a
135b88446
143acd7d0
152774161
hex1b257aa

28465066 has 16 divisors (see below), whose sum is σ = 50480640. Its totient is φ = 11778480.

The previous prime is 28465057. The next prime is 28465067. The reversal of 28465066 is 66056482.

It is not an unprimeable number, because it can be changed into a prime (28465067) 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, 34650 + ... + 35461.

It is an arithmetic number, because the mean of its divisors is an integer number (3155040).

Almost surely, 228465066 is an apocalyptic number.

28465066 is a deficient number, since it is larger than the sum of its proper divisors (22015574).

28465066 is a wasteful number, since it uses less digits than its factorization.

28465066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70149.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 28465066 is about 5335.2662538996. The cubic root of 28465066 is about 305.3308816166.

The spelling of 28465066 in words is "twenty-eight million, four hundred sixty-five thousand, sixty-six".

Divisors: 1 2 7 14 29 58 203 406 70111 140222 490777 981554 2033219 4066438 14232533 28465066