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28550756080830 = 2351039239726887
BaseRepresentation
bin1100111110111011111011…
…01011001001110010111110
310202002102111021120200022010
412133131331223021302332
512220233422024041310
6140420011500232050
76004503231336534
oct637357553116276
9122072437520263
1028550756080830
119108342544505
1232513b253b626
1312c142b60bb89
14709c14a26154
15347a0d873320
hex19f77dac9cbe

28550756080830 has 32 divisors (see below), whose sum is σ = 69187074937344. Its totient is φ = 7539617138976.

The previous prime is 28550756080829. The next prime is 28550756080831. The reversal of 28550756080830 is 3808065705582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28550756080829) and next prime (28550756080831).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550756080831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4619860354 + ... + 4619866533.

It is an arithmetic number, because the mean of its divisors is an integer number (2162096091792).

Almost surely, 228550756080830 is an apocalyptic number.

28550756080830 is an abundant number, since it is smaller than the sum of its proper divisors (40636318856514).

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

28550756080830 is a wasteful number, since it uses less digits than its factorization.

28550756080830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239727000.

The product of its (nonzero) digits is 16128000, while the sum is 57.

The spelling of 28550756080830 in words is "twenty-eight trillion, five hundred fifty billion, seven hundred fifty-six million, eighty thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 103 206 309 515 618 1030 1545 3090 9239726887 18479453774 27719180661 46198634435 55438361322 92397268870 138595903305 277191806610 951691869361 1903383738722 2855075608083 4758459346805 5710151216166 9516918693610 14275378040415 28550756080830