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28758056061063 = 373109256399783
BaseRepresentation
bin1101000100111110000011…
…01101110100100010000111
310202211020120101001210002210
412202133001231310202013
512232132444322423223
6141055134002234503
76025462303161000
oct642370155644207
9122736511053083
1028758056061063
11918824aa1a91a
123285606955a33
131307b47125a84
14715c7c4301a7
1534d0e2b19893
hex1a27c1b74887

28758056061063 has 32 divisors (see below), whose sum is σ = 45126361984000. Its totient is φ = 16282411756128.

The previous prime is 28758056061001. The next prime is 28758056061083. The reversal of 28758056061063 is 36016065085782.

It is not a de Polignac number, because 28758056061063 - 216 = 28758055995527 is a prime.

It is a super-2 number, since 2×287580560610632 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28758056060994 and 28758056061012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28758056061083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128087731 + ... + 128312052.

It is an arithmetic number, because the mean of its divisors is an integer number (1410198812000).

Almost surely, 228758056061063 is an apocalyptic number.

28758056061063 is a deficient number, since it is larger than the sum of its proper divisors (16368305922937).

28758056061063 is a wasteful number, since it uses less digits than its factorization.

28758056061063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256399916 (or 256399902 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 28758056061063 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty-one thousand, sixty-three".

Divisors: 1 3 7 21 49 109 147 327 343 763 1029 2289 5341 16023 37387 112161 256399783 769199349 1794798481 5384395443 12563589367 27947576347 37690768101 83842729041 87945125569 195633034429 263835376707 586899103287 1369431241003 4108293723009 9586018687021 28758056061063