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28883134 = 2731611091
BaseRepresentation
bin110111000101…
…1100010111110
32000100102012201
41232023202332
524343230014
62511022114
7500334250
oct156134276
960312181
1028883134
1115338365
12980a93a
135ca3817
143b9bcd0
152807e74
hex1b8b8be

28883134 has 32 divisors (see below), whose sum is σ = 51996672. Its totient is φ = 11772000.

The previous prime is 28883131. The next prime is 28883137. The reversal of 28883134 is 43138882.

It is an interprime number because it is at equal distance from previous prime (28883131) and next prime (28883137).

It is a junction number, because it is equal to n+sod(n) for n = 28883093 and 28883102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28883131) 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, 25929 + ... + 27019.

It is an arithmetic number, because the mean of its divisors is an integer number (1624896).

Almost surely, 228883134 is an apocalyptic number.

28883134 is a deficient number, since it is larger than the sum of its proper divisors (23113538).

28883134 is a wasteful number, since it uses less digits than its factorization.

28883134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its digits is 36864, while the sum is 37.

The square root of 28883134 is about 5374.3031176144. The cubic root of 28883134 is about 306.8184265142.

The spelling of 28883134 in words is "twenty-eight million, eight hundred eighty-three thousand, one hundred thirty-four".

Divisors: 1 2 7 14 31 61 62 122 217 427 434 854 1091 1891 2182 3782 7637 13237 15274 26474 33821 66551 67642 133102 236747 465857 473494 931714 2063081 4126162 14441567 28883134