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140980840 = 235721113503
BaseRepresentation
bin10000110011100…
…11001001101000
3100211021120100121
420121303021220
5242042341330
621553413024
73331213600
oct1031631150
9324246317
10140980840
1172641aa0
123b26a174
1323291920
1414a1bc00
15c59c17a
hex8673268

140980840 has 192 divisors, whose sum is σ = 434367360. Its totient is φ = 40481280.

The previous prime is 140980831. The next prime is 140980843. The reversal of 140980840 is 48089041.

It is a junction number, because it is equal to n+sod(n) for n = 140980796 and 140980805.

It is not an unprimeable number, because it can be changed into a prime (140980843) 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, 280029 + ... + 280531.

It is an arithmetic number, because the mean of its divisors is an integer number (2262330).

Almost surely, 2140980840 is an apocalyptic number.

140980840 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 140980840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217183680).

140980840 is an abundant number, since it is smaller than the sum of its proper divisors (293386520).

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

140980840 is a wasteful number, since it uses less digits than its factorization.

140980840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 140980840 is about 11873.5352780880. The cubic root of 140980840 is about 520.4592097391.

The spelling of 140980840 in words is "one hundred forty million, nine hundred eighty thousand, eight hundred forty".