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144133131 = 3139345643
BaseRepresentation
bin10001001011101…
…00110000001011
3101001012201111010
420211310300023
5243344230011
622145135003
73400053132
oct1045646013
9331181433
10144133131
11743a539a
124032a463
1323b2669c
14151dc919
15c9c11a6
hex8974c0b

144133131 has 8 divisors (see below), whose sum is σ = 193560640. Its totient is φ = 95397192.

The previous prime is 144133117. The next prime is 144133169. The reversal of 144133131 is 131331441.

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

It is not a de Polignac number, because 144133131 - 223 = 135744523 is a prime.

It is a super-2 number, since 2×1441331312 = 41548718903726322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144133098 and 144133107.

It is not an unprimeable number, because it can be changed into a prime (144133181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172405 + ... + 173238.

It is an arithmetic number, because the mean of its divisors is an integer number (24195080).

Almost surely, 2144133131 is an apocalyptic number.

144133131 is a deficient number, since it is larger than the sum of its proper divisors (49427509).

144133131 is a wasteful number, since it uses less digits than its factorization.

144133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345785.

The product of its digits is 432, while the sum is 21.

The square root of 144133131 is about 12005.5458434842. The cubic root of 144133131 is about 524.3097577563.

Adding to 144133131 its reverse (131331441), we get a palindrome (275464572).

The spelling of 144133131 in words is "one hundred forty-four million, one hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 3 139 417 345643 1036929 48044377 144133131