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140969020 = 2257048451
BaseRepresentation
bin10000110011100…
…00010000111100
3100211020222010211
420121300100330
5242042002040
621553242204
73331134253
oct1031602074
9324228124
10140969020
1172634125
123b263364
132328942a
1414a1779a
15c5988ea
hex867043c

140969020 has 12 divisors (see below), whose sum is σ = 296034984. Its totient is φ = 56387600.

The previous prime is 140968991. The next prime is 140969053. The reversal of 140969020 is 20969041.

It is a happy number.

140969020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3524206 + ... + 3524245.

It is an arithmetic number, because the mean of its divisors is an integer number (24669582).

Almost surely, 2140969020 is an apocalyptic number.

140969020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140969020 is an abundant number, since it is smaller than the sum of its proper divisors (155065964).

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

140969020 is a wasteful number, since it uses less digits than its factorization.

140969020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7048460 (or 7048458 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 140969020 is about 11873.0375220497. The cubic root of 140969020 is about 520.4446640278. Note that the first 3 decimals are identical.

The spelling of 140969020 in words is "one hundred forty million, nine hundred sixty-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 7048451 14096902 28193804 35242255 70484510 140969020