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144343616 = 264155009
BaseRepresentation
bin10001001101010…
…00001001000000
3101001121102012212
420212220021000
5243422443431
622153441252
73401620604
oct1046501100
9331542185
10144343616
117452954a
1240410228
1323b9b431
1415255504
15ca1372b
hex89a8240

144343616 has 28 divisors (see below), whose sum is σ = 293423340. Its totient is φ = 70410240.

The previous prime is 144343613. The next prime is 144343621. The reversal of 144343616 is 616343441.

It can be written as a sum of positive squares in 2 ways, for example, as 54169600 + 90174016 = 7360^2 + 9496^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (144343613) 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, 24881 + ... + 30128.

It is an arithmetic number, because the mean of its divisors is an integer number (10479405).

Almost surely, 2144343616 is an apocalyptic number.

144343616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144343616 is an abundant number, since it is smaller than the sum of its proper divisors (149079724).

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

144343616 is an equidigital number, since it uses as much as digits as its factorization.

144343616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55062 (or 55052 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 144343616 is about 12014.3088024239. The cubic root of 144343616 is about 524.5648590898.

The spelling of 144343616 in words is "one hundred forty-four million, three hundred forty-three thousand, six hundred sixteen".

Divisors: 1 2 4 8 16 32 41 64 82 164 328 656 1312 2624 55009 110018 220036 440072 880144 1760288 2255369 3520576 4510738 9021476 18042952 36085904 72171808 144343616