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144420166 = 21183139569
BaseRepresentation
bin10001001101110…
…10110101000110
3101001202022020001
420212322311012
5243432421131
622155231514
73402360022
oct1046726506
9331668201
10144420166
1174581010
124044859a
1323bc7227
1415275382
15ca2b261
hex89bad46

144420166 has 32 divisors (see below), whose sum is σ = 241315200. Its totient is φ = 64274880.

The previous prime is 144420161. The next prime is 144420167. The reversal of 144420166 is 661024441.

144420166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144420161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253530 + ... + 254098.

It is an arithmetic number, because the mean of its divisors is an integer number (7541100).

Almost surely, 2144420166 is an apocalyptic number.

144420166 is a deficient number, since it is larger than the sum of its proper divisors (96895034).

144420166 is a wasteful number, since it uses less digits than its factorization.

144420166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 144420166 is about 12017.4941647583. The cubic root of 144420166 is about 524.6575738321.

The spelling of 144420166 in words is "one hundred forty-four million, four hundred twenty thousand, one hundred sixty-six".

Divisors: 1 2 11 22 83 139 166 278 569 913 1138 1529 1826 3058 6259 11537 12518 23074 47227 79091 94454 126907 158182 253814 519497 870001 1038994 1740002 6564553 13129106 72210083 144420166