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28532841 = 371971381
BaseRepresentation
bin110110011011…
…0000001101001
31222200121200220
41230312001221
524301022331
62455320253
7464345061
oct154660151
958617626
1028532841
1115119167
129680089
135bb024c
143b0a3a1
152789296
hex1b36069

28532841 has 16 divisors (see below), whose sum is σ = 39005568. Its totient is φ = 18547200.

The previous prime is 28532837. The next prime is 28532869. The reversal of 28532841 is 14823582.

It is not a de Polignac number, because 28532841 - 22 = 28532837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28532831) 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, 19971 + ... + 21351.

It is an arithmetic number, because the mean of its divisors is an integer number (2437848).

Almost surely, 228532841 is an apocalyptic number.

It is an amenable number.

28532841 is a deficient number, since it is larger than the sum of its proper divisors (10472727).

28532841 is a wasteful number, since it uses less digits than its factorization.

28532841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552.

The product of its digits is 15360, while the sum is 33.

The square root of 28532841 is about 5341.6140819045. The cubic root of 28532841 is about 305.5730193337.

The spelling of 28532841 in words is "twenty-eight million, five hundred thirty-two thousand, eight hundred forty-one".

Divisors: 1 3 71 97 213 291 1381 4143 6887 20661 98051 133957 294153 401871 9510947 28532841