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86280063145 = 519247939973
BaseRepresentation
bin101000001011010110…
…0010100100010101001
322020201000011100002021
41100112230110202221
52403200144010040
6103345253104441
76143046302413
oct1202654244251
9266630140067
1086280063145
1133655934511
121487b028121
1381a023ac03
144266c4b9b3
15239e9c824a
hex1416b148a9

86280063145 has 24 divisors (see below), whose sum is σ = 109305903816. Its totient is φ = 65371007232.

The previous prime is 86280063143. The next prime is 86280063169. The reversal of 86280063145 is 54136008268.

It can be written as a sum of positive squares in 4 ways, for example, as 8069788224 + 78210274921 = 89832^2 + 279661^2 .

It is not a de Polignac number, because 86280063145 - 21 = 86280063143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86280063143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8646379 + ... + 8656351.

It is an arithmetic number, because the mean of its divisors is an integer number (4554412659).

Almost surely, 286280063145 is an apocalyptic number.

It is an amenable number.

86280063145 is a deficient number, since it is larger than the sum of its proper divisors (23025840671).

86280063145 is a wasteful number, since it uses less digits than its factorization.

86280063145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14809 (or 14790 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 86280063145 in words is "eighty-six billion, two hundred eighty million, sixty-three thousand, one hundred forty-five".

Divisors: 1 5 19 95 361 1805 4793 9973 23965 49865 91067 189487 455335 947435 1730273 3600253 8651365 18001265 47800589 239002945 908211191 4541055955 17256012629 86280063145