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144885146 = 27194353239
BaseRepresentation
bin10001010001011…
…00010110011010
3101002121221001112
420220230112122
5244042311041
622213220322
73406334450
oct1050542632
9332557045
10144885146
117486939a
12406316a2
132402aa73
14153569d0
15cabddeb
hex8a2c59a

144885146 has 64 divisors (see below), whose sum is σ = 273715200. Its totient is φ = 56137536.

The previous prime is 144885137. The next prime is 144885157. The reversal of 144885146 is 641588441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606095 + ... + 606333.

It is an arithmetic number, because the mean of its divisors is an integer number (4276800).

Almost surely, 2144885146 is an apocalyptic number.

144885146 is a deficient number, since it is larger than the sum of its proper divisors (128830054).

144885146 is a wasteful number, since it uses less digits than its factorization.

144885146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its digits is 122880, while the sum is 41.

The square root of 144885146 is about 12036.8245812590. The cubic root of 144885146 is about 525.2200389809.

The spelling of 144885146 in words is "one hundred forty-four million, eight hundred eighty-five thousand, one hundred forty-six".

Divisors: 1 2 7 14 19 38 43 53 86 106 133 239 266 301 371 478 602 742 817 1007 1634 1673 2014 2279 3346 4541 4558 5719 7049 9082 10277 11438 12667 14098 15953 20554 25334 31787 31906 43301 63574 71939 86602 88669 143878 177338 195263 240673 303107 390526 481346 544681 606214 1089362 1366841 1684711 2733682 3369422 3812767 7625534 10348939 20697878 72442573 144885146