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10123229 = 12018429
BaseRepresentation
bin100110100111…
…011111011101
3201001022110102
4212213133131
510042420404
61000550445
7152021534
oct46473735
921038412
1010123229
115794806
123482425
13213599c
1414b731b
15d4e71e
hex9a77dd

10123229 has 4 divisors (see below), whose sum is σ = 10132860. Its totient is φ = 10113600.

The previous prime is 10123207. The next prime is 10123241. The reversal of 10123229 is 92232101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 9597604 = 725^2 + 3098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10123229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10123229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3014 + ... + 5415.

It is an arithmetic number, because the mean of its divisors is an integer number (2533215).

Almost surely, 210123229 is an apocalyptic number.

It is an amenable number.

10123229 is a deficient number, since it is larger than the sum of its proper divisors (9631).

10123229 is an equidigital number, since it uses as much as digits as its factorization.

10123229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9630.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 10123229 is about 3181.7022173673. The cubic root of 10123229 is about 216.3248213588.

The spelling of 10123229 in words is "ten million, one hundred twenty-three thousand, two hundred twenty-nine".

Divisors: 1 1201 8429 10123229