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15012423 = 322337159
BaseRepresentation
bin111001010001…
…001001000111
31001020201011200
4321101021013
512320344143
61253433543
7241413666
oct71211107
931221150
1015012423
118524068
12503b8b3
1331581ba
141dcaddd
1514b81d3
hexe51247

15012423 has 12 divisors (see below), whose sum is σ = 21780720. Its totient is φ = 9963936.

The previous prime is 15012407. The next prime is 15012427. The reversal of 15012423 is 32421051.

It is not a de Polignac number, because 15012423 - 24 = 15012407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15012396 and 15012405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15012427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1483 + ... + 5676.

It is an arithmetic number, because the mean of its divisors is an integer number (1815060).

Almost surely, 215012423 is an apocalyptic number.

15012423 is a deficient number, since it is larger than the sum of its proper divisors (6768297).

15012423 is a wasteful number, since it uses less digits than its factorization.

15012423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7398 (or 7395 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 15012423 is about 3874.5868166812. The cubic root of 15012423 is about 246.6892725407.

Adding to 15012423 its reverse (32421051), we get a palindrome (47433474).

The spelling of 15012423 in words is "fifteen million, twelve thousand, four hundred twenty-three".

Divisors: 1 3 9 233 699 2097 7159 21477 64431 1668047 5004141 15012423