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28341207 = 3229108587
BaseRepresentation
bin110110000011…
…1001111010111
31222022212211100
41230013033113
524223404312
62451241143
7462616266
oct154071727
958285740
1028341207
1114aa8194
1295a91b3
135b43c5b
143a9a5dd
15274c5dc
hex1b073d7

28341207 has 12 divisors (see below), whose sum is σ = 42349320. Its totient is φ = 18242448.

The previous prime is 28341113. The next prime is 28341233. The reversal of 28341207 is 70214382.

It is a de Polignac number, because none of the positive numbers 2k-28341207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28341277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54033 + ... + 54554.

It is an arithmetic number, because the mean of its divisors is an integer number (3529110).

Almost surely, 228341207 is an apocalyptic number.

28341207 is a deficient number, since it is larger than the sum of its proper divisors (14008113).

28341207 is a wasteful number, since it uses less digits than its factorization.

28341207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108622 (or 108619 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 28341207 is about 5323.6460250471. The cubic root of 28341207 is about 304.8873793644.

Adding to 28341207 its reverse (70214382), we get a palindrome (98555589).

The spelling of 28341207 in words is "twenty-eight million, three hundred forty-one thousand, two hundred seven".

Divisors: 1 3 9 29 87 261 108587 325761 977283 3149023 9447069 28341207