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142244401211 = 1189178781307
BaseRepresentation
bin1000010001111001101…
…1010101000000111011
3111121011020221021101222
42010132123111000323
54312304031314321
6145202435102255
713163643314033
oct2043633250073
9447136837358
10142244401211
115536428aa80
122369944198b
131054b86b553
146c557468c3
153a77cae3ab
hex211e6d503b

142244401211 has 16 divisors (see below), whose sum is σ = 157009000320. Its totient is φ = 127787014080.

The previous prime is 142244401183. The next prime is 142244401213. The reversal of 142244401211 is 112104442241.

It is not a de Polignac number, because 142244401211 - 226 = 142177292347 is a prime.

It is a super-3 number, since 3×1422444012113 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142244401213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708820 + ... + 1790126.

It is an arithmetic number, because the mean of its divisors is an integer number (9813062520).

Almost surely, 2142244401211 is an apocalyptic number.

142244401211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142244401211 is a deficient number, since it is larger than the sum of its proper divisors (14764599109).

142244401211 is a wasteful number, since it uses less digits than its factorization.

142244401211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83194.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 142244401211 its reverse (112104442241), we get a palindrome (254348843452).

The spelling of 142244401211 in words is "one hundred forty-two billion, two hundred forty-four million, four hundred one thousand, two hundred eleven".

Divisors: 1 11 89 979 1787 19657 81307 159043 894377 1749473 7236323 79599553 145295609 1598251699 12931309201 142244401211