Search a number
-
+
141221231402240 = 28511291987174061
BaseRepresentation
bin100000000111000010100001…
…010101010001110100000000
3200112000121200102120122010202
4200013002201111101310000
5122002232040214332430
61220204045454144332
741513616522653033
oct4007024125216400
9615017612518122
10141221231402240
1140aa7651551060
1213a097547b20a8
1360a51498407c2
1426c320348301a
15114d74d0d2d45
hex8070a1551d00

141221231402240 has 288 divisors, whose sum is σ = 381939874162560. Its totient is φ = 49557137817600.

The previous prime is 141221231402231. The next prime is 141221231402297. The reversal of 141221231402240 is 42204132122141.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 811244810 + ... + 811418870.

It is an arithmetic number, because the mean of its divisors is an integer number (1326180118620).

Almost surely, 2141221231402240 is an apocalyptic number.

141221231402240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 141221231402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190969937081280).

141221231402240 is an abundant number, since it is smaller than the sum of its proper divisors (240718642760320).

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

141221231402240 is a wasteful number, since it uses less digits than its factorization.

141221231402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176109 (or 176095 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 141221231402240 its reverse (42204132122141), we get a palindrome (183425363524381).

The spelling of 141221231402240 in words is "one hundred forty-one trillion, two hundred twenty-one billion, two hundred thirty-one million, four hundred two thousand, two hundred forty".