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144427602 = 23112188297
BaseRepresentation
bin10001001101111…
…00101001010010
3101001202200102110
420212330221102
5243433140402
622155330150
73402420504
oct1046745122
9331680373
10144427602
1174586660
1240450956
1323bca727
1415277d74
15ca2d56c
hex89bca52

144427602 has 16 divisors (see below), whose sum is σ = 315114912. Its totient is φ = 43765920.

The previous prime is 144427579. The next prime is 144427609. The reversal of 144427602 is 206724441.

It is a self number, because there is not a number n which added to its sum of digits gives 144427602.

It is not an unprimeable number, because it can be changed into a prime (144427609) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1094083 + ... + 1094214.

It is an arithmetic number, because the mean of its divisors is an integer number (19694682).

Almost surely, 2144427602 is an apocalyptic number.

144427602 is an abundant number, since it is smaller than the sum of its proper divisors (170687310).

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

144427602 is a wasteful number, since it uses less digits than its factorization.

144427602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188313.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 144427602 is about 12017.8035430772. The cubic root of 144427602 is about 524.6665783151. Note that the first 3 decimals are identical.

The spelling of 144427602 in words is "one hundred forty-four million, four hundred twenty-seven thousand, six hundred two".

Divisors: 1 2 3 6 11 22 33 66 2188297 4376594 6564891 13129782 24071267 48142534 72213801 144427602