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144254145 = 3571373849
BaseRepresentation
bin10001001100100…
…10010011000001
3101001102212111010
420212102103001
5243412113040
622151511133
73401066010
oct1046222301
9331385433
10144254145
1174478302
12403884a9
1323b697a9
1415230a77
15c9e6e80
hex89924c1

144254145 has 16 divisors (see below), whose sum is σ = 263779200. Its totient is φ = 65944704.

The previous prime is 144254119. The next prime is 144254161. The reversal of 144254145 is 541452441.

It is not a de Polignac number, because 144254145 - 217 = 144123073 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686820 + ... + 687029.

It is an arithmetic number, because the mean of its divisors is an integer number (16486200).

Almost surely, 2144254145 is an apocalyptic number.

144254145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144254145 is a deficient number, since it is larger than the sum of its proper divisors (119525055).

144254145 is a wasteful number, since it uses less digits than its factorization.

144254145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373864.

The product of its digits is 12800, while the sum is 30.

The square root of 144254145 is about 12010.5847068326. The cubic root of 144254145 is about 524.4564533187.

The spelling of 144254145 in words is "one hundred forty-four million, two hundred fifty-four thousand, one hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 1373849 4121547 6869245 9616943 20607735 28850829 48084715 144254145