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140980 = 22571953
BaseRepresentation
bin100010011010110100
321011101111
4202122310
514002410
63004404
71125010
oct423264
9234344
10140980
1196a14
1269704
134c228
1439540
152bb8a
hex226b4

140980 has 48 divisors (see below), whose sum is σ = 362880. Its totient is φ = 44928.

The previous prime is 140977. The next prime is 140983. The reversal of 140980 is 89041.

140980 = 202 + 212 + ... + 752.

It is an interprime number because it is at equal distance from previous prime (140977) and next prime (140983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2634 + ... + 2686.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2140980 is an apocalyptic number.

140980 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 140980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181440).

140980 is an abundant number, since it is smaller than the sum of its proper divisors (221900).

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

140980 is a wasteful number, since it uses less digits than its factorization.

140980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 140980 is about 375.4730349839. The cubic root of 140980 is about 52.0458176061.

The spelling of 140980 in words is "one hundred forty thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 53 70 76 95 106 133 140 190 212 265 266 371 380 530 532 665 742 1007 1060 1330 1484 1855 2014 2660 3710 4028 5035 7049 7420 10070 14098 20140 28196 35245 70490 140980