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140175868 = 2273711439
BaseRepresentation
bin10000101101011…
…10100111111100
3100202202200010211
420112232213330
5241341111433
621524242204
73321322000
oct1026564774
9322680124
10140175868
1172142228
123ab40364
132306c401
141488c700
15c48d8cd
hex85ae9fc

140175868 has 48 divisors (see below), whose sum is σ = 290304000. Its totient is φ = 59188080.

The previous prime is 140175857. The next prime is 140175883. The reversal of 140175868 is 868571041.

It is a self number, because there is not a number n which added to its sum of digits gives 140175868.

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, 96693 + ... + 98131.

It is an arithmetic number, because the mean of its divisors is an integer number (6048000).

Almost surely, 2140175868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140175868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145152000).

140175868 is an abundant number, since it is smaller than the sum of its proper divisors (150128132).

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

140175868 is a wasteful number, since it uses less digits than its factorization.

140175868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 140175868 is about 11839.5890131372. The cubic root of 140175868 is about 519.4667462410.

The spelling of 140175868 in words is "one hundred forty million, one hundred seventy-five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 49 71 98 142 196 284 343 497 686 994 1372 1439 1988 2878 3479 5756 6958 10073 13916 20146 24353 40292 48706 70511 97412 102169 141022 204338 282044 408676 493577 715183 987154 1430366 1974308 2860732 5006281 10012562 20025124 35043967 70087934 140175868