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144678797 = 5915715619
BaseRepresentation
bin10001001111110…
…01111110001101
3101002020102222222
420213321332031
5244014210142
622204545125
73404515034
oct1047717615
9332212888
10144678797
117473835a
12405521a5
1323c87b73
141530171b
15ca7cbd2
hex89f9f8d

144678797 has 8 divisors (see below), whose sum is σ = 148077600. Its totient is φ = 141311664.

The previous prime is 144678761. The next prime is 144678799. The reversal of 144678797 is 797876441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144678797 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 (144678799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454 + ... + 17072.

It is an arithmetic number, because the mean of its divisors is an integer number (18509700).

Almost surely, 2144678797 is an apocalyptic number.

It is an amenable number.

144678797 is a deficient number, since it is larger than the sum of its proper divisors (3398803).

144678797 is a wasteful number, since it uses less digits than its factorization.

144678797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15835.

The product of its digits is 2370816, while the sum is 53.

The square root of 144678797 is about 12028.2499558331. The cubic root of 144678797 is about 524.9705767335.

The spelling of 144678797 in words is "one hundred forty-four million, six hundred seventy-eight thousand, seven hundred ninety-seven".

Divisors: 1 59 157 9263 15619 921521 2452183 144678797