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140732860 = 225231971553
BaseRepresentation
bin10000110001101…
…10100110111100
3100210210222012011
420120312212330
5242011422420
621544221004
73326131612
oct1030664674
9323728164
10140732860
1172492754
123b16a764
1323205aa8
14149956b2
15c54d95a
hex86369bc

140732860 has 48 divisors (see below), whose sum is σ = 310153536. Its totient is φ = 53537792.

The previous prime is 140732827. The next prime is 140732909. The reversal of 140732860 is 68237041.

140732860 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89844 + ... + 91396.

It is an arithmetic number, because the mean of its divisors is an integer number (6461532).

Almost surely, 2140732860 is an apocalyptic number.

140732860 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 140732860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155076768).

140732860 is an abundant number, since it is smaller than the sum of its proper divisors (169420676).

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

140732860 is a wasteful number, since it uses less digits than its factorization.

140732860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 140732860 is about 11863.0881308368. The cubic root of 140732860 is about 520.1538745804.

The spelling of 140732860 in words is "one hundred forty million, seven hundred thirty-two thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 23 46 92 115 197 230 394 460 788 985 1553 1970 3106 3940 4531 6212 7765 9062 15530 18124 22655 31060 35719 45310 71438 90620 142876 178595 305941 357190 611882 714380 1223764 1529705 3059410 6118820 7036643 14073286 28146572 35183215 70366430 140732860