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28380182 = 2127111733
BaseRepresentation
bin110110001000…
…0110000010110
31222101212021212
41230100300112
524231131212
62452141422
7463141025
oct154206026
958355255
1028380182
11150244a6
129607872
135b5890c
143aaa8bc
152758e22
hex1b10c16

28380182 has 8 divisors (see below), whose sum is σ = 42905856. Its totient is φ = 14078232.

The previous prime is 28380173. The next prime is 28380203. The reversal of 28380182 is 28108382.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55613 + ... + 56120.

It is an arithmetic number, because the mean of its divisors is an integer number (5363232).

Almost surely, 228380182 is an apocalyptic number.

28380182 is a deficient number, since it is larger than the sum of its proper divisors (14525674).

28380182 is a wasteful number, since it uses less digits than its factorization.

28380182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111862.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 28380182 is about 5327.3053225810. The cubic root of 28380182 is about 305.0270763385.

The spelling of 28380182 in words is "twenty-eight million, three hundred eighty thousand, one hundred eighty-two".

Divisors: 1 2 127 254 111733 223466 14190091 28380182