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86427642145 = 51312311080143
BaseRepresentation
bin101000001111101111…
…1010010100100100001
322021002021212010102011
41100133133102210201
52404000434022040
6103412044152521
76146520560035
oct1203737224441
9267067763364
1086427642145
1133721172829
1214900538741
1381c499cb70
14427c6a61c5
1523ac92a3ea
hex141f7d2921

86427642145 has 16 divisors (see below), whose sum is σ = 111781942272. Its totient is φ = 63771583680.

The previous prime is 86427642139. The next prime is 86427642151. The reversal of 86427642145 is 54124672468.

It is an interprime number because it is at equal distance from previous prime (86427642139) and next prime (86427642151).

It is not a de Polignac number, because 86427642145 - 25 = 86427642113 is a prime.

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, 460057 + ... + 620086.

It is an arithmetic number, because the mean of its divisors is an integer number (6986371392).

Almost surely, 286427642145 is an apocalyptic number.

It is an amenable number.

86427642145 is a deficient number, since it is larger than the sum of its proper divisors (25354300127).

86427642145 is a wasteful number, since it uses less digits than its factorization.

86427642145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081392.

The product of its digits is 2580480, while the sum is 49.

The spelling of 86427642145 in words is "eighty-six billion, four hundred twenty-seven million, six hundred forty-two thousand, one hundred forty-five".

Divisors: 1 5 13 65 1231 6155 16003 80015 1080143 5400715 14041859 70209295 1329656033 6648280165 17285528429 86427642145