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12423043250 = 253172923069
BaseRepresentation
bin10111001000111100…
…01001100010110010
31012001210010222120222
423210132021202302
5200420244341000
65412420533042
7616566060662
oct134436114262
935053128528
1012423043250
1152a55362a2
1224a8551182
13122c9b3787
1485bca01a2
154ca986a85
hex2e47898b2

12423043250 has 32 divisors (see below), whose sum is σ = 24623941680. Its totient is φ = 4676908800.

The previous prime is 12423043219. The next prime is 12423043253. The reversal of 12423043250 is 5234032421.

It can be written as a sum of positive squares in 8 ways, for example, as 806730409 + 11616312841 = 28403^2 + 107779^2 .

It is not an unprimeable number, because it can be changed into a prime (12423043253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1457285 + ... + 1465784.

Almost surely, 212423043250 is an apocalyptic number.

12423043250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12423043250 is a deficient number, since it is larger than the sum of its proper divisors (12200898430).

12423043250 is a wasteful number, since it uses less digits than its factorization.

12423043250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923103 (or 2923093 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 12423043250 its reverse (5234032421), we get a palindrome (17657075671).

The spelling of 12423043250 in words is "twelve billion, four hundred twenty-three million, forty-three thousand, two hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 85 125 170 250 425 850 2125 4250 2923069 5846138 14615345 29230690 49692173 73076725 99384346 146153450 248460865 365383625 496921730 730767250 1242304325 2484608650 6211521625 12423043250