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141042440 = 235711223181
BaseRepresentation
bin10000110100000…
…10001100001000
3100211101200212002
420122002030020
5242101324230
621555010132
73331561310
oct1032021410
9324350762
10141042440
1172684300
123b299948
13232b3986
1414a36440
15c5b0545
hex8682308

141042440 has 192 divisors, whose sum is σ = 418279680. Its totient is φ = 41817600.

The previous prime is 141042439. The next prime is 141042443. The reversal of 141042440 is 44240141.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141042443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 779150 + ... + 779330.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 2141042440 is an apocalyptic number.

141042440 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 141042440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209139840).

141042440 is an abundant number, since it is smaller than the sum of its proper divisors (277237240).

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

141042440 is a wasteful number, since it uses less digits than its factorization.

141042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 141042440 is about 11876.1289989626. The cubic root of 141042440 is about 520.5350016434.

Adding to 141042440 its reverse (44240141), we get a palindrome (185282581).

The spelling of 141042440 in words is "one hundred forty-one million, forty-two thousand, four hundred forty".