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12423803 = 73291249
BaseRepresentation
bin101111011001…
…001001111011
3212101012020212
4233121021323
511140030203
61122141335
7210413000
oct57311173
925335225
1012423803
117016207
1241b184b
13275cb82
1419158a7
1511561d8
hexbd927b

12423803 has 16 divisors (see below), whose sum is σ = 15000000. Its totient is φ = 10273536.

The previous prime is 12423799. The next prime is 12423811. The reversal of 12423803 is 30832421.

It is not a de Polignac number, because 12423803 - 22 = 12423799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423833) 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, 9323 + ... + 10571.

It is an arithmetic number, because the mean of its divisors is an integer number (937500).

Almost surely, 212423803 is an apocalyptic number.

12423803 is a deficient number, since it is larger than the sum of its proper divisors (2576197).

12423803 is an equidigital number, since it uses as much as digits as its factorization.

12423803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12423803 is about 3524.7415508091. The cubic root of 12423803 is about 231.6069133772.

The spelling of 12423803 in words is "twelve million, four hundred twenty-three thousand, eight hundred three".

Divisors: 1 7 29 49 203 343 1249 1421 8743 9947 36221 61201 253547 428407 1774829 12423803