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144899902 = 2715168543
BaseRepresentation
bin10001010001011…
…11111100111110
3101002122200022001
420220233330332
5244043244102
622213412514
73406425460
oct1050577476
9332580261
10144899902
1174879494
124063a13a
13240346b4
141535c130
15cac3487
hex8a2ff3e

144899902 has 16 divisors (see below), whose sum is σ = 250048512. Its totient is φ = 61687800.

The previous prime is 144899879. The next prime is 144899903. The reversal of 144899902 is 209998441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144899903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32158 + ... + 36385.

It is an arithmetic number, because the mean of its divisors is an integer number (15628032).

Almost surely, 2144899902 is an apocalyptic number.

144899902 is a deficient number, since it is larger than the sum of its proper divisors (105148610).

144899902 is a wasteful number, since it uses less digits than its factorization.

144899902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68703.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 144899902 is about 12037.4375180102. The cubic root of 144899902 is about 525.2378689288.

The spelling of 144899902 in words is "one hundred forty-four million, eight hundred ninety-nine thousand, nine hundred two".

Divisors: 1 2 7 14 151 302 1057 2114 68543 137086 479801 959602 10349993 20699986 72449951 144899902