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85865151468 = 22329383644227
BaseRepresentation
bin100111111110111110…
…1100011101111101100
322012122002102122021010
41033331331203233230
52401322434321333
6103240152105220
76126550513365
oct1177575435754
9265562378233
1085865151468
11334627041a8
1214784095210
1381352a8245
144227ac4b6c
15237836b563
hex13fdf63bec

85865151468 has 48 divisors (see below), whose sum is σ = 207802183680. Its totient is φ = 27562565184.

The previous prime is 85865151431. The next prime is 85865151473. The reversal of 85865151468 is 86415156858.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188830 + ... + 455397.

It is an arithmetic number, because the mean of its divisors is an integer number (4329212160).

Almost surely, 285865151468 is an apocalyptic number.

It is an amenable number.

85865151468 is an abundant number, since it is smaller than the sum of its proper divisors (121937032212).

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

85865151468 is a wasteful number, since it uses less digits than its factorization.

85865151468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644646 (or 644644 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 57.

The spelling of 85865151468 in words is "eighty-five billion, eight hundred sixty-five million, one hundred fifty-one thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 383 766 1149 1532 2298 4596 11107 22214 33321 44428 66642 133284 644227 1288454 1932681 2576908 3865362 7730724 18682583 37365166 56047749 74730332 112095498 224190996 246738941 493477882 740216823 986955764 1480433646 2960867292 7155429289 14310858578 21466287867 28621717156 42932575734 85865151468