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144678912 = 21337292
BaseRepresentation
bin10001001111110…
…10000000000000
3101002020110011020
420213322000000
5244014211122
622204545440
73404515260
oct1047720000
9332213136
10144678912
1174738454
1240552280
1323c87c31
14153017a0
15ca7cc5c
hex89fa000

144678912 has 168 divisors, whose sum is σ = 456626976. Its totient is φ = 39911424.

The previous prime is 144678893. The next prime is 144678943. The reversal of 144678912 is 219876441.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4988914 + ... + 4988942.

Almost surely, 2144678912 is an apocalyptic number.

144678912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144678912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228313488).

144678912 is an abundant number, since it is smaller than the sum of its proper divisors (311948064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144678912 is an frugal number, since it uses more digits than its factorization.

144678912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 41 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 144678912 is about 12028.2547362450. The cubic root of 144678912 is about 524.9707158269.

Multiplying 144678912 by its sum of digits (42), we get a square (6076514304 = 779522).

144678912 divided by its sum of digits (42) gives a square (3444736 = 18562).

Multiplying 144678912 by its product of digits (96768), we get a square (14000288956416 = 37416962).

The spelling of 144678912 in words is "one hundred forty-four million, six hundred seventy-eight thousand, nine hundred twelve".