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140881132 = 2275031469
BaseRepresentation
bin10000110010110…
…10110011101100
3100211002111120201
420121122303230
5242031144012
621551323244
73330320110
oct1031326354
9324074521
10140881132
1172584097
123b220524
1323258422
14149d3740
15c57c857
hex865acec

140881132 has 12 divisors (see below), whose sum is σ = 281762320. Its totient is φ = 60377616.

The previous prime is 140881121. The next prime is 140881171. The reversal of 140881132 is 231188041.

140881132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

140881132 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 5031469 = 140881132 / (1 + 4 + 0 + 8 + 8 + 1 + 1 + 3 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 140881132.

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, 2515707 + ... + 2515762.

Almost surely, 2140881132 is an apocalyptic number.

It is an amenable number.

140881132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140881132 is a wasteful number, since it uses less digits than its factorization.

140881132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031480 (or 5031478 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 140881132 is about 11869.3357859654. The cubic root of 140881132 is about 520.3364834036.

The spelling of 140881132 in words is "one hundred forty million, eight hundred eighty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 5031469 10062938 20125876 35220283 70440566 140881132