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15196423 = 111381493
BaseRepresentation
bin111001111110…
…000100000111
31001121001120111
4321332010013
512342241143
61301413451
7243111304
oct71760407
931531514
1015196423
11863a330
12510a287
1331c0b88
1420380ab
15150299d
hexe7e107

15196423 has 4 divisors (see below), whose sum is σ = 16577928. Its totient is φ = 13814920.

The previous prime is 15196421. The next prime is 15196457. The reversal of 15196423 is 32469151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15196423 - 21 = 15196421 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15196421) 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, 690736 + ... + 690757.

It is an arithmetic number, because the mean of its divisors is an integer number (4144482).

Almost surely, 215196423 is an apocalyptic number.

15196423 is a deficient number, since it is larger than the sum of its proper divisors (1381505).

15196423 is a wasteful number, since it uses less digits than its factorization.

15196423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381504.

The product of its digits is 6480, while the sum is 31.

The square root of 15196423 is about 3898.2589703610. The cubic root of 15196423 is about 247.6930330970.

The spelling of 15196423 in words is "fifteen million, one hundred ninety-six thousand, four hundred twenty-three".

Divisors: 1 11 1381493 15196423