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27935028 = 223211453
BaseRepresentation
bin110101010010…
…0000100110100
31221120020122200
41222210010310
524122410103
62434424500
7456305142
oct152440464
957506580
1027935028
1114850000
129432130
135a31104
1439d2592
1526bc0a3
hex1aa4134

27935028 has 90 divisors (see below), whose sum is σ = 79139970. Its totient is φ = 8305440.

The previous prime is 27935027. The next prime is 27935059. The reversal of 27935028 is 82053972.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25826724 + 2108304 = 5082^2 + 1452^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 27934983 and 27935001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27935027) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 527050 + ... + 527102.

It is an arithmetic number, because the mean of its divisors is an integer number (879333).

Almost surely, 227935028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27935028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39569985).

27935028 is an abundant number, since it is smaller than the sum of its proper divisors (51204942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27935028 is a wasteful number, since it uses less digits than its factorization.

27935028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 27935028 is about 5285.3597796177. The cubic root of 27935028 is about 303.4238423574.

It can be divided in two parts, 279350 and 28, that added together give a triangular number (279378 = T747).

The spelling of 27935028 in words is "twenty-seven million, nine hundred thirty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 53 66 99 106 121 132 159 198 212 242 318 363 396 477 484 583 636 726 954 1089 1166 1331 1452 1749 1908 2178 2332 2662 3498 3993 4356 5247 5324 6413 6996 7986 10494 11979 12826 14641 15972 19239 20988 23958 25652 29282 38478 43923 47916 57717 58564 70543 76956 87846 115434 131769 141086 175692 211629 230868 263538 282172 423258 527076 634887 775973 846516 1269774 1551946 2327919 2539548 3103892 4655838 6983757 9311676 13967514 27935028