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28465274 = 220636899
BaseRepresentation
bin110110010010…
…1100001111010
31222120012000102
41230211201322
524241342044
62454035402
7463644065
oct154454172
958505012
1028465274
1115082422
129648b62
135b88576
143acd8dc
15277424e
hex1b2587a

28465274 has 8 divisors (see below), whose sum is σ = 42724800. Its totient is φ = 14223676.

The previous prime is 28465267. The next prime is 28465277. The reversal of 28465274 is 47256482.

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

It is not an unprimeable number, because it can be changed into a prime (28465277) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 677 + ... + 7575.

It is an arithmetic number, because the mean of its divisors is an integer number (5340600).

Almost surely, 228465274 is an apocalyptic number.

28465274 is a deficient number, since it is larger than the sum of its proper divisors (14259526).

28465274 is a wasteful number, since it uses less digits than its factorization.

28465274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8964.

The product of its digits is 107520, while the sum is 38.

The square root of 28465274 is about 5335.2857467993. The cubic root of 28465274 is about 305.3316253197.

The spelling of 28465274 in words is "twenty-eight million, four hundred sixty-five thousand, two hundred seventy-four".

Divisors: 1 2 2063 4126 6899 13798 14232637 28465274