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12430170 = 2325138113
BaseRepresentation
bin101111011010…
…101101011010
3212101111222200
4233122231122
511140231140
61122231030
7210440364
oct57325532
925344880
1012430170
11701aa75
1241b5476
132762a3c
141917d34
151158030
hexbdab5a

12430170 has 24 divisors (see below), whose sum is σ = 32318676. Its totient is φ = 3314688.

The previous prime is 12430133. The next prime is 12430181. The reversal of 12430170 is 7103421.

It can be written as a sum of positive squares in 2 ways, for example, as 12173121 + 257049 = 3489^2 + 507^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68967 + ... + 69146.

Almost surely, 212430170 is an apocalyptic number.

12430170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12430170 is an abundant number, since it is smaller than the sum of its proper divisors (19888506).

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

12430170 is a wasteful number, since it uses less digits than its factorization.

12430170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138126 (or 138123 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12430170 is about 3525.6446219096. The cubic root of 12430170 is about 231.6464715645.

Adding to 12430170 its reverse (7103421), we get a palindrome (19533591).

The spelling of 12430170 in words is "twelve million, four hundred thirty thousand, one hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 138113 276226 414339 690565 828678 1243017 1381130 2071695 2486034 4143390 6215085 12430170