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144331122 = 231317891223
BaseRepresentation
bin10001001101001…
…01000101110010
3101001120210002010
420212211011302
5243422043442
622153303350
73401536305
oct1046450562
9331523063
10144331122
1174520121
1240404b56
1323b95840
1415250b3c
15ca0eb9c
hex89a5172

144331122 has 64 divisors (see below), whose sum is σ = 333123840. Its totient is φ = 41293824.

The previous prime is 144331097. The next prime is 144331129. The reversal of 144331122 is 221133441.

It is not an unprimeable number, because it can be changed into a prime (144331129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117403 + ... + 118625.

It is an arithmetic number, because the mean of its divisors is an integer number (5205060).

Almost surely, 2144331122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144331122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166561920).

144331122 is an abundant number, since it is smaller than the sum of its proper divisors (188792718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144331122 is a wasteful number, since it uses less digits than its factorization.

144331122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347.

The product of its digits is 576, while the sum is 21.

The square root of 144331122 is about 12013.7888278428. The cubic root of 144331122 is about 524.5497236728.

Adding to 144331122 its reverse (221133441), we get a palindrome (365464563).

It can be divided in two parts, 144331 and 122, that added together give a triangular number (144453 = T537).

The spelling of 144331122 in words is "one hundred forty-four million, three hundred thirty-one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 89 102 178 221 267 442 534 663 1157 1223 1326 1513 2314 2446 3026 3471 3669 4539 6942 7338 9078 15899 19669 20791 31798 39338 41582 47697 59007 62373 95394 108847 118014 124746 217694 270283 326541 540566 653082 810849 1415011 1621698 1850399 2830022 3700798 4245033 5551197 8490066 11102394 24055187 48110374 72165561 144331122