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144398951 = 443325957
BaseRepresentation
bin10001001101101…
…01101001100111
3101001201020010022
420212311221213
5243431231301
622154545355
73402241124
oct1046655147
9331636108
10144398951
1174567084
124043825b
1323bba688
141526b74b
15ca24d1b
hex89b5a67

144398951 has 4 divisors (see below), whose sum is σ = 144725352. Its totient is φ = 144072552.

The previous prime is 144398941. The next prime is 144398957. The reversal of 144398951 is 159893441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159893441 = 831926427.

It is a cyclic number.

It is not a de Polignac number, because 144398951 - 210 = 144397927 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 (144398957) 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, 162536 + ... + 163421.

It is an arithmetic number, because the mean of its divisors is an integer number (36181338).

Almost surely, 2144398951 is an apocalyptic number.

144398951 is a deficient number, since it is larger than the sum of its proper divisors (326401).

144398951 is an equidigital number, since it uses as much as digits as its factorization.

144398951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326400.

The product of its digits is 155520, while the sum is 44.

The square root of 144398951 is about 12016.6114608071. The cubic root of 144398951 is about 524.6318822320.

The spelling of 144398951 in words is "one hundred forty-four million, three hundred ninety-eight thousand, nine hundred fifty-one".

Divisors: 1 443 325957 144398951