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86430169 = 73251983
BaseRepresentation
bin1010010011011…
…01000111011001
320000122002220101
411021231013121
5134111231134
612324255401
72066434000
oct511550731
9200562811
1086430169
11448732a1
1224b41561
1314ba2117
14b69bc37
1578c3e14
hex526d1d9

86430169 has 8 divisors (see below), whose sum is σ = 100793600. Its totient is φ = 74082708.

The previous prime is 86430163. The next prime is 86430191. The reversal of 86430169 is 96103468.

It is not a de Polignac number, because 86430169 - 23 = 86430161 is a prime.

It is a super-2 number, since 2×864301692 = 14940348226737122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86430161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125649 + ... + 126334.

It is an arithmetic number, because the mean of its divisors is an integer number (12599200).

Almost surely, 286430169 is an apocalyptic number.

86430169 is the 5368-th hex number.

It is an amenable number.

86430169 is a deficient number, since it is larger than the sum of its proper divisors (14363431).

86430169 is an equidigital number, since it uses as much as digits as its factorization.

86430169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252004 (or 251990 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 86430169 is about 9296.7827230715. The cubic root of 86430169 is about 442.1352291945.

The spelling of 86430169 in words is "eighty-six million, four hundred thirty thousand, one hundred sixty-nine".

Divisors: 1 7 49 343 251983 1763881 12347167 86430169