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23487412 = 2213451681
BaseRepresentation
bin101100110011…
…0001110110100
31122012021200011
41121212032310
522003044122
62155230004
7403432264
oct131461664
948167604
1023487412
1112292493
127a48304
134b348a0
1431957a4
1520de377
hex16663b4

23487412 has 12 divisors (see below), whose sum is σ = 44264836. Its totient is φ = 10840320.

The previous prime is 23487403. The next prime is 23487413. The reversal of 23487412 is 21478432.

It can be written as a sum of positive squares in 2 ways, for example, as 5134756 + 18352656 = 2266^2 + 4284^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23487413) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 225789 + ... + 225892.

Almost surely, 223487412 is an apocalyptic number.

It is an amenable number.

23487412 is a deficient number, since it is larger than the sum of its proper divisors (20777424).

23487412 is a wasteful number, since it uses less digits than its factorization.

23487412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451698 (or 451696 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 23487412 is about 4846.3813304361. The cubic root of 23487412 is about 286.3815631890.

The spelling of 23487412 in words is "twenty-three million, four hundred eighty-seven thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 451681 903362 1806724 5871853 11743706 23487412