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28252127 = 375314407
BaseRepresentation
bin110101111000…
…1011111011111
31222011100122002
41223301133133
524213032002
62445312515
7462065501
oct153613737
958140562
1028252127
1114a47272
12956573b
135b12547
143a75d71
152731002
hex1af17df

28252127 has 8 divisors (see below), whose sum is σ = 29565216. Its totient is φ = 26968032.

The previous prime is 28252117. The next prime is 28252151. The reversal of 28252127 is 72125282.

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 28252127 - 28 = 28251871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28252127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28252117) 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, 5243 + ... + 9164.

It is an arithmetic number, because the mean of its divisors is an integer number (3695652).

Almost surely, 228252127 is an apocalyptic number.

28252127 is a deficient number, since it is larger than the sum of its proper divisors (1313089).

28252127 is a wasteful number, since it uses less digits than its factorization.

28252127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14497.

The product of its digits is 4480, while the sum is 29.

The square root of 28252127 is about 5315.2729939299. The cubic root of 28252127 is about 304.5676109008.

The spelling of 28252127 in words is "twenty-eight million, two hundred fifty-two thousand, one hundred twenty-seven".

Divisors: 1 37 53 1961 14407 533059 763571 28252127