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140564688880 = 245721119171571
BaseRepresentation
bin1000001011101001001…
…1101110111111110000
3111102211012021001021011
42002322103232333300
54300334030021010
6144324033040304
713104216066400
oct2027223567760
9442735231234
10140564688880
1154682114270
12232aa9b6094
1310341876325
146b36622800
1539ca5b6a8a
hex20ba4eeff0

140564688880 has 240 divisors, whose sum is σ = 436561522560. Its totient is φ = 41506214400.

The previous prime is 140564688857. The next prime is 140564688889. The reversal of 140564688880 is 88886465041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140564688889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733495 + ... + 905065.

It is an arithmetic number, because the mean of its divisors is an integer number (1819006344).

Almost surely, 2140564688880 is an apocalyptic number.

140564688880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140564688880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218280761280).

140564688880 is an abundant number, since it is smaller than the sum of its proper divisors (295996833680).

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

140564688880 is a wasteful number, since it uses less digits than its factorization.

140564688880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171628 (or 171615 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 58.

The spelling of 140564688880 in words is "one hundred forty billion, five hundred sixty-four million, six hundred eighty-eight thousand, eight hundred eighty".