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28011283265 = 5717616131259
BaseRepresentation
bin11010000101100110…
…100100001101000001
32200022011011121212202
4122011212210031001
5424331342031030
620511311002545
72011100656610
oct320546441501
980264147782
1028011283265
1110974703789
125518b09455
13284536b734
1414da289877
15ade244745
hex6859a4341

28011283265 has 64 divisors (see below), whose sum is σ = 41442347520. Its totient is φ = 17738403840.

The previous prime is 28011283253. The next prime is 28011283277. The reversal of 28011283265 is 56238211082.

It is an interprime number because it is at equal distance from previous prime (28011283253) and next prime (28011283277).

It is not a de Polignac number, because 28011283265 - 210 = 28011282241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22248206 + ... + 22249464.

It is an arithmetic number, because the mean of its divisors is an integer number (647536680).

Almost surely, 228011283265 is an apocalyptic number.

It is an amenable number.

28011283265 is a deficient number, since it is larger than the sum of its proper divisors (13431064255).

28011283265 is a wasteful number, since it uses less digits than its factorization.

28011283265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 28011283265 in words is "twenty-eight billion, eleven million, two hundred eighty-three thousand, two hundred sixty-five".

Divisors: 1 5 7 17 35 61 85 119 305 427 595 613 1037 1259 2135 3065 4291 5185 6295 7259 8813 10421 21403 21455 36295 37393 44065 52105 72947 76799 107015 149821 186965 261751 364735 383995 537593 635681 749105 771767 1305583 1308755 2687965 3178405 3858835 4449767 5402369 6527915 9139081 13120039 22248835 27011845 45695405 47077787 65600195 91840273 235388935 329544509 459201365 800322379 1647722545 4001611895 5602256653 28011283265