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28098254 = 236738281
BaseRepresentation
bin110101100101…
…1111011001110
31221212112120002
41223023323032
524143121004
62442124302
7460555052
oct153137316
957775502
1028098254
11149516a8
1294b0692
135a8a4b2
143a35c62
15270061e
hex1acbece

28098254 has 8 divisors (see below), whose sum is σ = 42263328. Its totient is φ = 14010480.

The previous prime is 28098253. The next prime is 28098269. The reversal of 28098254 is 45289082.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28098253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18407 + ... + 19874.

It is an arithmetic number, because the mean of its divisors is an integer number (5282916).

Almost surely, 228098254 is an apocalyptic number.

28098254 is a deficient number, since it is larger than the sum of its proper divisors (14165074).

28098254 is a wasteful number, since it uses less digits than its factorization.

28098254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38650.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 28098254 is about 5300.7786220517. The cubic root of 28098254 is about 304.0136694569.

The spelling of 28098254 in words is "twenty-eight million, ninety-eight thousand, two hundred fifty-four".

Divisors: 1 2 367 734 38281 76562 14049127 28098254