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140369878 = 2116380449
BaseRepresentation
bin10000101110111…
…01111111010110
3100210010112021101
420113131333112
5241413314003
621532340314
73323060425
oct1027357726
9323115241
10140369878
1172264a70
123b01469a
13231097cc
14148dd2bc
15c4cb11d
hex85ddfd6

140369878 has 8 divisors (see below), whose sum is σ = 229696200. Its totient is φ = 63804480.

The previous prime is 140369863. The next prime is 140369881. The reversal of 140369878 is 878963041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3190203 + ... + 3190246.

It is an arithmetic number, because the mean of its divisors is an integer number (28712025).

Almost surely, 2140369878 is an apocalyptic number.

140369878 is a deficient number, since it is larger than the sum of its proper divisors (89326322).

140369878 is a wasteful number, since it uses less digits than its factorization.

140369878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380462.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 140369878 is about 11847.7794543957. The cubic root of 140369878 is about 519.7062912379.

The spelling of 140369878 in words is "one hundred forty million, three hundred sixty-nine thousand, eight hundred seventy-eight".

Divisors: 1 2 11 22 6380449 12760898 70184939 140369878