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140220880 = 2452376207
BaseRepresentation
bin10000101101110…
…01100111010000
3100202211221212221
420112321213100
5241344032010
621525230424
73321600142
oct1026714720
9322757787
10140220880
1172173028
123ab62414
1323086a47
14148a0c92
15c49bdda
hex85b99d0

140220880 has 40 divisors (see below), whose sum is σ = 340192512. Its totient is φ = 53649024.

The previous prime is 140220877. The next prime is 140220889. The reversal of 140220880 is 88022041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140220889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36264 + ... + 39943.

Almost surely, 2140220880 is an apocalyptic number.

140220880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140220880 is an abundant number, since it is smaller than the sum of its proper divisors (199971632).

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

140220880 is a wasteful number, since it uses less digits than its factorization.

140220880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76243 (or 76237 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 140220880 is about 11841.4897711394. The cubic root of 140220880 is about 519.5223424365.

The spelling of 140220880 in words is "one hundred forty million, two hundred twenty thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 76207 152414 304828 381035 609656 762070 1219312 1524140 1752761 3048280 3505522 6096560 7011044 8763805 14022088 17527610 28044176 35055220 70110440 140220880