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28374017 = 719920369
BaseRepresentation
bin110110000111…
…1010000000001
31222101112211112
41230033100001
524230432032
62452053105
7463114040
oct154172001
958345745
1028374017
111501a901
129604195
135b55b79
143aa8557
1527571b2
hex1b0f401

28374017 has 8 divisors (see below), whose sum is σ = 32592000. Its totient is φ = 24197184.

The previous prime is 28373993. The next prime is 28374043. The reversal of 28374017 is 71047382.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28374017 - 26 = 28373953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28374067) 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, 8792 + ... + 11577.

It is an arithmetic number, because the mean of its divisors is an integer number (4074000).

Almost surely, 228374017 is an apocalyptic number.

It is an amenable number.

28374017 is a deficient number, since it is larger than the sum of its proper divisors (4217983).

28374017 is a wasteful number, since it uses less digits than its factorization.

28374017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20575.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 28374017 is about 5326.7266684147. The cubic root of 28374017 is about 305.0049878249.

The spelling of 28374017 in words is "twenty-eight million, three hundred seventy-four thousand, seventeen".

Divisors: 1 7 199 1393 20369 142583 4053431 28374017