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140850040 = 23519241769
BaseRepresentation
bin10000110010100…
…11001101111000
3100211000220221011
420121103031320
5242024200130
621550523304
73330130342
oct1031231570
9324026834
10140850040
11725627a1
123b206534
1323247226
14149c6292
15c57352a
hex8653378

140850040 has 64 divisors (see below), whose sum is σ = 335412000. Its totient is φ = 53084160.

The previous prime is 140850001. The next prime is 140850041. The reversal of 140850040 is 40058041.

It is a junction number, because it is equal to n+sod(n) for n = 140849993 and 140850020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140850041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182776 + ... + 183544.

Almost surely, 2140850040 is an apocalyptic number.

140850040 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 140850040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167706000).

140850040 is an abundant number, since it is smaller than the sum of its proper divisors (194561960).

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

140850040 is a wasteful number, since it uses less digits than its factorization.

140850040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 140850040 is about 11868.0259521118. The cubic root of 140850040 is about 520.2982017401.

The spelling of 140850040 in words is "one hundred forty million, eight hundred fifty thousand, forty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 241 380 482 760 769 964 1205 1538 1928 2410 3076 3845 4579 4820 6152 7690 9158 9640 14611 15380 18316 22895 29222 30760 36632 45790 58444 73055 91580 116888 146110 183160 185329 292220 370658 584440 741316 926645 1482632 1853290 3521251 3706580 7042502 7413160 14085004 17606255 28170008 35212510 70425020 140850040