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10123506 = 232562417
BaseRepresentation
bin100110100111…
…100011110010
3201001022211200
4212213203302
510042423011
61000552030
7152022411
oct46474362
921038750
1010123506
115794a38
123482616
132135b53
1414b7478
15d4e856
hex9a78f2

10123506 has 12 divisors (see below), whose sum is σ = 21934302. Its totient is φ = 3374496.

The previous prime is 10123481. The next prime is 10123513. The reversal of 10123506 is 60532101.

It can be written as a sum of positive squares in only one way, i.e., 7371225 + 2752281 = 2715^2 + 1659^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 562417 = 10123506 / (1 + 0 + 1 + 2 + 3 + 5 + 0 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281191 + ... + 281226.

Almost surely, 210123506 is an apocalyptic number.

10123506 is an abundant number, since it is smaller than the sum of its proper divisors (11810796).

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

10123506 is a wasteful number, since it uses less digits than its factorization.

10123506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562425 (or 562422 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 10123506 is about 3181.7457472275. The cubic root of 10123506 is about 216.3267944259.

Adding to 10123506 its reverse (60532101), we get a palindrome (70655607).

The spelling of 10123506 in words is "ten million, one hundred twenty-three thousand, five hundred six".

Divisors: 1 2 3 6 9 18 562417 1124834 1687251 3374502 5061753 10123506