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28461453 = 313172421
BaseRepresentation
bin110110010010…
…0100110001101
31222112222202220
41230210212031
524241231303
62454005553
7463626666
oct154444615
958488686
1028461453
111507a569
1296468b9
135b868c7
143acc36d
152773053
hex1b2498d

28461453 has 8 divisors (see below), whose sum is σ = 38238816. Its totient is φ = 18829200.

The previous prime is 28461443. The next prime is 28461467. The reversal of 28461453 is 35416482.

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

It is not a de Polignac number, because 28461453 - 24 = 28461437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28461443) 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, 35818 + ... + 36603.

It is an arithmetic number, because the mean of its divisors is an integer number (4779852).

Almost surely, 228461453 is an apocalyptic number.

It is an amenable number.

28461453 is a deficient number, since it is larger than the sum of its proper divisors (9777363).

28461453 is a wasteful number, since it uses less digits than its factorization.

28461453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72555.

The product of its digits is 23040, while the sum is 33.

The square root of 28461453 is about 5334.9276471195. The cubic root of 28461453 is about 305.3179627736.

The spelling of 28461453 in words is "twenty-eight million, four hundred sixty-one thousand, four hundred fifty-three".

Divisors: 1 3 131 393 72421 217263 9487151 28461453