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144121210 = 2514412121
BaseRepresentation
bin10001001011100…
…01110101111010
3101001012010010121
420211301311322
5243343334320
622145003454
73400003312
oct1045616572
9331163117
10144121210
1174397442
124032358a
1323b2112c
14151d8442
15c9bc8aa
hex8971d7a

144121210 has 8 divisors (see below), whose sum is σ = 259418196. Its totient is φ = 57648480.

The previous prime is 144121183. The next prime is 144121249. The reversal of 144121210 is 12121441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 142635249 + 1485961 = 11943^2 + 1219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7206051 + ... + 7206070.

Almost surely, 2144121210 is an apocalyptic number.

144121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144121210 is a deficient number, since it is larger than the sum of its proper divisors (115296986).

144121210 is a wasteful number, since it uses less digits than its factorization.

144121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14412128.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 144121210 is about 12005.0493543342. The cubic root of 144121210 is about 524.2953024424.

Adding to 144121210 its reverse (12121441), we get a palindrome (156242651).

The spelling of 144121210 in words is "one hundred forty-four million, one hundred twenty-one thousand, two hundred ten".

Divisors: 1 2 5 10 14412121 28824242 72060605 144121210