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28374797 = 1143239251
BaseRepresentation
bin110110000111…
…1011100001101
31222101120220102
41230033130031
524230443142
62452100445
7463116233
oct154173415
958346812
1028374797
1115020450
129604725
135b56329
143aa8953
152757532
hex1b0f70d

28374797 has 16 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 24990000.

The previous prime is 28374791. The next prime is 28374817. The reversal of 28374797 is 79747382.

It is a cyclic number.

It is not a de Polignac number, because 28374797 - 212 = 28370701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28374791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112922 + ... + 113172.

It is an arithmetic number, because the mean of its divisors is an integer number (1995840).

Almost surely, 228374797 is an apocalyptic number.

It is an amenable number.

28374797 is a deficient number, since it is larger than the sum of its proper divisors (3558643).

28374797 is a wasteful number, since it uses less digits than its factorization.

28374797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its digits is 592704, while the sum is 47.

The square root of 28374797 is about 5326.7998836074. The cubic root of 28374797 is about 305.0077826555.

The spelling of 28374797 in words is "twenty-eight million, three hundred seventy-four thousand, seven hundred ninety-seven".

Divisors: 1 11 43 239 251 473 2629 2761 10277 10793 59989 113047 118723 659879 2579527 28374797