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28525051373 = 7135961251347
BaseRepresentation
bin11010100100001110…
…011011110111101101
32201121221220202020012
4122210032123313231
5431404403120443
621034302503005
72026606636040
oct324416336755
981557822205
1028525051373
1111108714325
125640b94a65
1328c7934530
1415485c6c57
15b1e3cc118
hex6a439bded

28525051373 has 64 divisors (see below), whose sum is σ = 36537661440. Its totient is φ = 21673440000.

The previous prime is 28525051363. The next prime is 28525051381. The reversal of 28525051373 is 37315052582.

It is a cyclic number.

It is not a de Polignac number, because 28525051373 - 26 = 28525051309 is a prime.

It is a super-3 number, since 3×285250513733 (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28525051373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28525051343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82204586 + ... + 82204932.

It is an arithmetic number, because the mean of its divisors is an integer number (570900960).

Almost surely, 228525051373 is an apocalyptic number.

It is an amenable number.

28525051373 is a deficient number, since it is larger than the sum of its proper divisors (8012610067).

28525051373 is a wasteful number, since it uses less digits than its factorization.

28525051373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 28525051373 in words is "twenty-eight billion, five hundred twenty-five million, fifty-one thousand, three hundred seventy-three".

Divisors: 1 7 13 59 61 91 251 347 413 427 767 793 1757 2429 3263 3599 4511 5369 5551 14809 15311 20473 21167 22841 25193 31577 46787 87097 103663 107177 143311 148169 192517 199043 266149 275171 327509 609679 903349 1132261 1248853 1347619 1393301 1863043 1926197 5138723 5312917 6323443 7925827 8741971 11743537 16235089 35971061 37190419 66803399 69067921 82204759 113645623 313462103 467623793 483475447 2194234721 4075007339 28525051373