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140741140 = 225232711129
BaseRepresentation
bin10000110001110…
…00101000010100
3100210211101112211
420120320220110
5242012204030
621544323204
73326165011
oct1030705024
9323741484
10140741140
11724989a1
123b173504
13232097a7
1414998708
15c55112a
hex8638a14

140741140 has 48 divisors (see below), whose sum is σ = 309818880. Its totient is φ = 53602560.

The previous prime is 140741123. The next prime is 140741141. The reversal of 140741140 is 41147041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140741141) 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, 124096 + ... + 125224.

It is an arithmetic number, because the mean of its divisors is an integer number (6454560).

Almost surely, 2140741140 is an apocalyptic number.

140741140 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 140741140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154909440).

140741140 is an abundant number, since it is smaller than the sum of its proper divisors (169077740).

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

140741140 is a wasteful number, since it uses less digits than its factorization.

140741140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1430 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 140741140 is about 11863.4371073479. The cubic root of 140741140 is about 520.1640754428.

Adding to 140741140 its reverse (41147041), we get a palindrome (181888181).

The spelling of 140741140 in words is "one hundred forty million, seven hundred forty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 271 460 542 1084 1129 1355 2258 2710 4516 5420 5645 6233 11290 12466 22580 24932 25967 31165 51934 62330 103868 124660 129835 259670 305959 519340 611918 1223836 1529795 3059590 6119180 7037057 14074114 28148228 35185285 70370570 140741140