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28948343 = 196124977
BaseRepresentation
bin110111001101…
…1011101110111
32000110201122212
41232123131313
524402321333
62512244035
7501025334
oct156333567
960421585
1028948343
1115382356
12984061b
135cc73c8
143bb798b
15281c448
hex1b9b777

28948343 has 8 divisors (see below), whose sum is σ = 30972720. Its totient is φ = 26974080.

The previous prime is 28948307. The next prime is 28948349. The reversal of 28948343 is 34384982.

It is a happy number.

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 28948343 - 210 = 28947319 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 28948343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28948349) 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, 11330 + ... + 13647.

It is an arithmetic number, because the mean of its divisors is an integer number (3871590).

Almost surely, 228948343 is an apocalyptic number.

28948343 is a deficient number, since it is larger than the sum of its proper divisors (2024377).

28948343 is a wasteful number, since it uses less digits than its factorization.

28948343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25057.

The product of its digits is 165888, while the sum is 41.

The square root of 28948343 is about 5380.3664373349. The cubic root of 28948343 is about 307.0491526869.

The spelling of 28948343 in words is "twenty-eight million, nine hundred forty-eight thousand, three hundred forty-three".

Divisors: 1 19 61 1159 24977 474563 1523597 28948343