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144543700 = 22527316661
BaseRepresentation
bin10001001110110…
…00111111010100
3101001222120200101
420213120333110
5244000344300
622202023444
73403413130
oct1047307724
9331876611
10144543700
1174655904
12404a7b84
1323c3b522
14152a83c0
15ca52b6a
hex89d8fd4

144543700 has 72 divisors (see below), whose sum is σ = 370087424. Its totient is φ = 47952000.

The previous prime is 144543691. The next prime is 144543703. The reversal of 144543700 is 7345441.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144543703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18370 + ... + 25030.

Almost surely, 2144543700 is an apocalyptic number.

144543700 is a gapful number since it is divisible by the number (10) 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 144543700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185043712).

144543700 is an abundant number, since it is smaller than the sum of its proper divisors (225543724).

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

144543700 is a wasteful number, since it uses less digits than its factorization.

144543700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713 (or 6706 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 144543700 is about 12022.6328231382. The cubic root of 144543700 is about 524.8071249172.

The spelling of 144543700 in words is "one hundred forty-four million, five hundred forty-three thousand, seven hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 31 35 50 62 70 100 124 140 155 175 217 310 350 434 620 700 775 868 1085 1550 2170 3100 4340 5425 6661 10850 13322 21700 26644 33305 46627 66610 93254 133220 166525 186508 206491 233135 333050 412982 466270 666100 825964 932540 1032455 1165675 1445437 2064910 2331350 2890874 4129820 4662700 5162275 5781748 7227185 10324550 14454370 20649100 28908740 36135925 72271850 144543700