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28606892530 = 2529218118793
BaseRepresentation
bin11010101001000110…
…101000100111110010
32201211122220201012011
4122221012220213302
5432041331030110
621050344553134
72031622401016
oct325106504762
981748821164
1028606892530
111114a932847
1256644827aa
13290b88a958
14155540c546
15b2669648a
hex6a91a89f2

28606892530 has 48 divisors (see below), whose sum is σ = 53626724424. Its totient is φ = 10986554880.

The previous prime is 28606892521. The next prime is 28606892539. The reversal of 28606892530 is 3529860682.

It is an interprime number because it is at equal distance from previous prime (28606892521) and next prime (28606892539).

It can be written as a sum of positive squares in 12 ways, for example, as 447703281 + 28159189249 = 21159^2 + 167807^2 .

It is not an unprimeable number, because it can be changed into a prime (28606892539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1512814 + ... + 1531606.

Almost surely, 228606892530 is an apocalyptic number.

28606892530 is a deficient number, since it is larger than the sum of its proper divisors (25019831894).

28606892530 is a wasteful number, since it uses less digits than its factorization.

28606892530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19039 (or 19010 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 28606892530 in words is "twenty-eight billion, six hundred six million, eight hundred ninety-two thousand, five hundred thirty".

Divisors: 1 2 5 10 29 58 145 181 290 362 841 905 1682 1810 4205 5249 8410 10498 18793 26245 37586 52490 93965 152221 187930 304442 544997 761105 1089994 1522210 2724985 3401533 5449970 6803066 15804913 17007665 31609826 34015330 79024565 98644457 158049130 197288914 493222285 986444570 2860689253 5721378506 14303446265 28606892530