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140949880 = 23514332459
BaseRepresentation
bin10000110011010…
…11100101111000
3100211012222212221
420121223211320
5242040344010
621553013424
73331024411
oct1031534570
9324188787
10140949880
1172620805
123b254274
13232807c6
1414a10808
15c592dda
hex866b978

140949880 has 32 divisors (see below), whose sum is σ = 317487600. Its totient is φ = 56317696.

The previous prime is 140949869. The next prime is 140949883. The reversal of 140949880 is 88949041.

140949880 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 not an unprimeable number, because it can be changed into a prime (140949883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56091 + ... + 58549.

Almost surely, 2140949880 is an apocalyptic number.

140949880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140949880 is an abundant number, since it is smaller than the sum of its proper divisors (176537720).

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

140949880 is a wasteful number, since it uses less digits than its factorization.

140949880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 140949880 is about 11872.2314667463. The cubic root of 140949880 is about 520.4211085882.

The spelling of 140949880 in words is "one hundred forty million, nine hundred forty-nine thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1433 2459 2866 4918 5732 7165 9836 11464 12295 14330 19672 24590 28660 49180 57320 98360 3523747 7047494 14094988 17618735 28189976 35237470 70474940 140949880