Search a number
-
+
144701447 = 1114479091
BaseRepresentation
bin10001001111111…
…11100000000111
3101002021121001212
420213333200013
5244020421242
622205242035
73404641052
oct1047774007
9332247055
10144701447
1174753380
124056331b
1323c95277
1415309a99
15ca84782
hex89ff807

144701447 has 8 divisors (see below), whose sum is σ = 157982592. Its totient is φ = 131441400.

The previous prime is 144701443. The next prime is 144701477. The reversal of 144701447 is 744107441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144701447 - 22 = 144701443 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 (144701443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11372 + ... + 20462.

It is an arithmetic number, because the mean of its divisors is an integer number (19747824).

Almost surely, 2144701447 is an apocalyptic number.

144701447 is a deficient number, since it is larger than the sum of its proper divisors (13281145).

144701447 is a wasteful number, since it uses less digits than its factorization.

144701447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10549.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 144701447 is about 12029.1914524626. The cubic root of 144701447 is about 524.9979706649.

Adding to 144701447 its reverse (744107441), we get a palindrome (888808888).

The spelling of 144701447 in words is "one hundred forty-four million, seven hundred one thousand, four hundred forty-seven".

Divisors: 1 11 1447 9091 15917 100001 13154677 144701447