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86145001 = 173125273
BaseRepresentation
bin1010010001001…
…11011111101001
320000002121201121
411020213133221
5134023120001
612314215241
72064135415
oct510473751
9200077647
1086145001
1144699018
1224a24521
1314b02397
14b625d45
1578696a1
hex52277e9

86145001 has 12 divisors (see below), whose sum is σ = 94267476. Its totient is φ = 78447360.

The previous prime is 86144999. The next prime is 86145023. The reversal of 86145001 is 10054168.

It can be written as a sum of positive squares in 2 ways, for example, as 55353600 + 30791401 = 7440^2 + 5549^2 .

It is not a de Polignac number, because 86145001 - 21 = 86144999 is a prime.

It is a super-2 number, since 2×861450012 = 14841922394580002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86145041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13701 + ... + 18973.

It is an arithmetic number, because the mean of its divisors is an integer number (7855623).

Almost surely, 286145001 is an apocalyptic number.

It is an amenable number.

86145001 is a deficient number, since it is larger than the sum of its proper divisors (8122475).

86145001 is a wasteful number, since it uses less digits than its factorization.

86145001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352 (or 5321 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 86145001 is about 9281.4331328734. The cubic root of 86145001 is about 441.6484325845.

Adding to 86145001 its reverse (10054168), we get a palindrome (96199169).

The spelling of 86145001 in words is "eighty-six million, one hundred forty-five thousand, one".

Divisors: 1 17 31 527 961 5273 16337 89641 163463 2778871 5067353 86145001