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144486474 = 23113170619
BaseRepresentation
bin10001001110010…
…11000001001010
3101001212200011220
420213023001022
5243442031344
622200502510
73403054236
oct1047130112
9331780156
10144486474
1174616910
124047aa36
1323c1b472
14152915c6
15ca40c19
hex89cb04a

144486474 has 32 divisors (see below), whose sum is σ = 325416960. Its totient is φ = 42370800.

The previous prime is 144486467. The next prime is 144486481. The reversal of 144486474 is 474684441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144486467) and next prime (144486481).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33264 + ... + 37355.

It is an arithmetic number, because the mean of its divisors is an integer number (10169280).

Almost surely, 2144486474 is an apocalyptic number.

144486474 is an abundant number, since it is smaller than the sum of its proper divisors (180930486).

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

144486474 is a wasteful number, since it uses less digits than its factorization.

144486474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70666.

The product of its digits is 344064, while the sum is 42.

The square root of 144486474 is about 12020.2526595742. The cubic root of 144486474 is about 524.7378573375.

The spelling of 144486474 in words is "one hundred forty-four million, four hundred eighty-six thousand, four hundred seventy-four".

Divisors: 1 2 3 6 11 22 31 33 62 66 93 186 341 682 1023 2046 70619 141238 211857 423714 776809 1553618 2189189 2330427 4378378 4660854 6567567 13135134 24081079 48162158 72243237 144486474