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144715090 = 25131113193
BaseRepresentation
bin10001010000000…
…10110101010010
3101002022021210011
420220002311102
5244021340330
622205425134
73405025612
oct1050026522
9332267704
10144715090
1174762653
124056b1aa
1323c9b540
1415310a42
15ca8882a
hex8a02d52

144715090 has 16 divisors (see below), whose sum is σ = 280524888. Its totient is φ = 53433216.

The previous prime is 144715079. The next prime is 144715093. The reversal of 144715090 is 90517441.

It can be written as a sum of positive squares in 4 ways, for example, as 89851441 + 54863649 = 9479^2 + 7407^2 .

It is not an unprimeable number, because it can be changed into a prime (144715093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556467 + ... + 556726.

Almost surely, 2144715090 is an apocalyptic number.

144715090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144715090 is a deficient number, since it is larger than the sum of its proper divisors (135809798).

144715090 is a wasteful number, since it uses less digits than its factorization.

144715090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113213.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 144715090 is about 12029.7585179421. The cubic root of 144715090 is about 525.0144697448.

The spelling of 144715090 in words is "one hundred forty-four million, seven hundred fifteen thousand, ninety".

Divisors: 1 2 5 10 13 26 65 130 1113193 2226386 5565965 11131930 14471509 28943018 72357545 144715090