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12023430 = 2351792239
BaseRepresentation
bin101101110111…
…011010000110
3211121212001020
4231313122012
511034222210
61105412010
7204124506
oct55673206
924555036
1012023430
116872421
12403a006
13264c873
14184da06
1510c7770
hexb77686

12023430 has 32 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 3186912.

The previous prime is 12023419. The next prime is 12023461. The reversal of 12023430 is 3432021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4251 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 212023430 is an apocalyptic number.

12023430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12023430 is an abundant number, since it is smaller than the sum of its proper divisors (17006970).

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

12023430 is a wasteful number, since it uses less digits than its factorization.

12023430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 12023430 is about 3467.4817951937. The cubic root of 12023430 is about 229.0917552764.

Adding to 12023430 its reverse (3432021), we get a palindrome (15455451).

The spelling of 12023430 in words is "twelve million, twenty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 179 358 537 895 1074 1790 2239 2685 4478 5370 6717 11195 13434 22390 33585 67170 400781 801562 1202343 2003905 2404686 4007810 6011715 12023430