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144264642205530 = 235711181613562871
BaseRepresentation
bin100000110011010100111010…
…110000001001011101011010
3200220210120020221221012121010
4200303110322300021131122
5122402112441401034110
61230454132305554350
742246530214651630
oct4063247260113532
9626716227835533
10144264642205530
1141a7032260a870
121421b5549459b6
136266135c5c152
14278a635927350
1511a29c399c020
hex83353ac0975a

144264642205530 has 256 divisors, whose sum is σ = 434763557609472. Its totient is φ = 29762764416000.

The previous prime is 144264642205493. The next prime is 144264642205543. The reversal of 144264642205530 is 35502246462441.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144264642205530.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 256019995 + ... + 256582865.

It is an arithmetic number, because the mean of its divisors is an integer number (1698295146912).

Almost surely, 2144264642205530 is an apocalyptic number.

144264642205530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144264642205530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217381778804736).

144264642205530 is an abundant number, since it is smaller than the sum of its proper divisors (290498915403942).

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

144264642205530 is a wasteful number, since it uses less digits than its factorization.

144264642205530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563693.

The product of its (nonzero) digits is 5529600, while the sum is 48.

Adding to 144264642205530 its reverse (35502246462441), we get a palindrome (179766888667971).

The spelling of 144264642205530 in words is "one hundred forty-four trillion, two hundred sixty-four billion, six hundred forty-two million, two hundred five thousand, five hundred thirty".