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142277867680 = 2551368402821
BaseRepresentation
bin1000010010000001101…
…0111111100010100000
3111121020120220112202211
42010200122333202200
54312341113231210
6145210032251504
713164530630644
oct2044032774240
9447216815684
10142277867680
1155381168913
12236a86a0b94
13105557882b0
146c59d78c24
153a7abc038a
hex21206bf8a0

142277867680 has 48 divisors (see below), whose sum is σ = 361987734024. Its totient is φ = 52533365760.

The previous prime is 142277867651. The next prime is 142277867707. The reversal of 142277867680 is 86768772241.

It can be written as a sum of positive squares in 4 ways, for example, as 59354602384 + 82923265296 = 243628^2 + 287964^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34199331 + ... + 34203490.

Almost surely, 2142277867680 is an apocalyptic number.

142277867680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142277867680 is an abundant number, since it is smaller than the sum of its proper divisors (219709866344).

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

142277867680 is a wasteful number, since it uses less digits than its factorization.

142277867680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68402849 (or 68402841 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 58.

The spelling of 142277867680 in words is "one hundred forty-two billion, two hundred seventy-seven million, eight hundred sixty-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 68402821 136805642 273611284 342014105 547222568 684028210 889236673 1094445136 1368056420 1778473346 2188890272 2736112840 3556946692 4446183365 5472225680 7113893384 8892366730 10944451360 14227786768 17784733460 28455573536 35569466920 71138933840 142277867680