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140868920 = 2353521723
BaseRepresentation
bin10000110010101…
…11110100111000
3100211001212211102
420121113310320
5242030301140
621551150532
73330236363
oct1031276470
9324055742
10140868920
11725759a5
123b215448
13232529ba
14149cd0da
15c578e15
hex8657d38

140868920 has 16 divisors (see below), whose sum is σ = 316955160. Its totient is φ = 56347552.

The previous prime is 140868911. The next prime is 140868941. The reversal of 140868920 is 29868041.

140868920 is digitally balanced in base 2, 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760822 + ... + 1760901.

Almost surely, 2140868920 is an apocalyptic number.

140868920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140868920 is an abundant number, since it is smaller than the sum of its proper divisors (176086240).

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

140868920 is a wasteful number, since it uses less digits than its factorization.

140868920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521734 (or 3521730 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 140868920 is about 11868.8213399646. The cubic root of 140868920 is about 520.3214481924.

The spelling of 140868920 in words is "one hundred forty million, eight hundred sixty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3521723 7043446 14086892 17608615 28173784 35217230 70434460 140868920