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144103415 = 528820683
BaseRepresentation
bin10001001011011…
…01011111110111
3101001011012201112
420211231133313
5243342302130
622144345235
73366600401
oct1045553767
9331135645
10144103415
1174385035
124031521b
1323b15cc1
14151d1b71
15c9b7495
hex896d7f7

144103415 has 4 divisors (see below), whose sum is σ = 172924104. Its totient is φ = 115282728.

The previous prime is 144103409. The next prime is 144103417. The reversal of 144103415 is 514301441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 514301441 = 1468335027.

It is a cyclic number.

It is not a de Polignac number, because 144103415 - 222 = 139909111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144103417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14410337 + ... + 14410346.

It is an arithmetic number, because the mean of its divisors is an integer number (43231026).

Almost surely, 2144103415 is an apocalyptic number.

144103415 is a deficient number, since it is larger than the sum of its proper divisors (28820689).

144103415 is an equidigital number, since it uses as much as digits as its factorization.

144103415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28820688.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 144103415 is about 12004.3081849809. The cubic root of 144103415 is about 524.2737228777.

Adding to 144103415 its reverse (514301441), we get a palindrome (658404856).

The spelling of 144103415 in words is "one hundred forty-four million, one hundred three thousand, four hundred fifteen".

Divisors: 1 5 28820683 144103415