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144103780 = 2257205189
BaseRepresentation
bin10001001011011…
…01100101100100
3101001011020020001
420211231211210
5243342310110
622144351044
73366601432
oct1045554544
9331136201
10144103780
1174385337
1240315484
1323b16212
14151d1d52
15c9b763a
hex896d964

144103780 has 12 divisors (see below), whose sum is σ = 302617980. Its totient is φ = 57641504.

The previous prime is 144103769. The next prime is 144103811. The reversal of 144103780 is 87301441.

It can be written as a sum of positive squares in 2 ways, for example, as 77158656 + 66945124 = 8784^2 + 8182^2 .

It is a super-3 number, since 3×1441037803 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3602575 + ... + 3602614.

It is an arithmetic number, because the mean of its divisors is an integer number (25218165).

Almost surely, 2144103780 is an apocalyptic number.

144103780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144103780 is an abundant number, since it is smaller than the sum of its proper divisors (158514200).

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

144103780 is a wasteful number, since it uses less digits than its factorization.

144103780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205198 (or 7205196 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 144103780 is about 12004.3233878466. The cubic root of 144103780 is about 524.2741655222.

The spelling of 144103780 in words is "one hundred forty-four million, one hundred three thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 7205189 14410378 28820756 36025945 72051890 144103780