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144636041 = 1113148731
BaseRepresentation
bin10001001111011…
…11100010001001
3101002011021100102
420213233202021
5244011323131
622204015145
73404246264
oct1047574211
9332137312
10144636041
1174709220
12405314b5
1323c71574
14152cdcdb
15ca701cb
hex89ef889

144636041 has 4 divisors (see below), whose sum is σ = 157784784. Its totient is φ = 131487300.

The previous prime is 144636031. The next prime is 144636043. The reversal of 144636041 is 140636441.

144636041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140636441 = 1112785131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144636041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144635995 and 144636013.

It is not an unprimeable number, because it can be changed into a prime (144636043) 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, 6574355 + ... + 6574376.

It is an arithmetic number, because the mean of its divisors is an integer number (39446196).

Almost surely, 2144636041 is an apocalyptic number.

144636041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144636041 is a deficient number, since it is larger than the sum of its proper divisors (13148743).

144636041 is a wasteful number, since it uses less digits than its factorization.

144636041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148742.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 144636041 is about 12026.4725085954. The cubic root of 144636041 is about 524.9188579056.

The spelling of 144636041 in words is "one hundred forty-four million, six hundred thirty-six thousand, forty-one".

Divisors: 1 11 13148731 144636041