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28370852770 = 2513218237329
BaseRepresentation
bin11010011011000010…
…001101101110100010
32201020012202122111211
4122123002031232202
5431100414242040
621011113500334
72023025161321
oct323302155642
981205678454
1028370852770
1111039674667
1255b94116aa
1328a19c5560
141531d280b8
15b10abd8ea
hex69b08dba2

28370852770 has 16 divisors (see below), whose sum is σ = 54995807160. Its totient is φ = 10475391744.

The previous prime is 28370852761. The next prime is 28370852773. The reversal of 28370852770 is 7725807382.

It can be written as a sum of positive squares in 4 ways, for example, as 22458319321 + 5912533449 = 149861^2 + 76893^2 .

It is not an unprimeable number, because it can be changed into a prime (28370852773) 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 7 ways as a sum of consecutive naturals, for example, 109118535 + ... + 109118794.

Almost surely, 228370852770 is an apocalyptic number.

28370852770 is a deficient number, since it is larger than the sum of its proper divisors (26624954390).

28370852770 is a wasteful number, since it uses less digits than its factorization.

28370852770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218237349.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 28370852770 in words is "twenty-eight billion, three hundred seventy million, eight hundred fifty-two thousand, seven hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 218237329 436474658 1091186645 2182373290 2837085277 5674170554 14185426385 28370852770