Search a number
-
+
144500457 = 3397121327
BaseRepresentation
bin10001001110011…
…10011011101001
3101001220101100210
420213032123221
5243443003312
622201051333
73403143063
oct1047163351
9331811323
10144500457
1174626372
1240486b49
1323c2493a
1415296733
15ca44e3c
hex89ce6e9

144500457 has 8 divisors (see below), whose sum is σ = 193154176. Its totient is φ = 96090192.

The previous prime is 144500437. The next prime is 144500471. The reversal of 144500457 is 754005441.

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

It is not a de Polignac number, because 144500457 - 223 = 136111849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144500437) 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, 59473 + ... + 61854.

It is an arithmetic number, because the mean of its divisors is an integer number (24144272).

Almost surely, 2144500457 is an apocalyptic number.

It is an amenable number.

144500457 is a deficient number, since it is larger than the sum of its proper divisors (48653719).

144500457 is a wasteful number, since it uses less digits than its factorization.

144500457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121727.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 144500457 is about 12020.8342888503. The cubic root of 144500457 is about 524.7547843493.

Adding to 144500457 its reverse (754005441), we get a palindrome (898505898).

The spelling of 144500457 in words is "one hundred forty-four million, five hundred thousand, four hundred fifty-seven".

Divisors: 1 3 397 1191 121327 363981 48166819 144500457