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141110021 = 1330013617
BaseRepresentation
bin10000110100100…
…10101100000101
3100211112010120002
420122102230011
5242111010041
622000251045
73332262323
oct1032225405
9324463502
10141110021
1172720058
123b310a85
1323308670
1414a52d13
15c5c559b
hex8692b05

141110021 has 8 divisors (see below), whose sum is σ = 152057304. Its totient is φ = 130176000.

The previous prime is 141109999. The next prime is 141110023. The reversal of 141110021 is 120011141.

It can be written as a sum of positive squares in 4 ways, for example, as 2788900 + 138321121 = 1670^2 + 11761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 141110021 - 26 = 141109957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 141109984 and 141110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37205 + ... + 40821.

It is an arithmetic number, because the mean of its divisors is an integer number (19007163).

Almost surely, 2141110021 is an apocalyptic number.

It is an amenable number.

141110021 is a deficient number, since it is larger than the sum of its proper divisors (10947283).

141110021 is a wasteful number, since it uses less digits than its factorization.

141110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 141110021 is about 11878.9739034986. The cubic root of 141110021 is about 520.6181271169.

Adding to 141110021 its reverse (120011141), we get a palindrome (261121162).

The spelling of 141110021 in words is "one hundred forty-one million, one hundred ten thousand, twenty-one".

Divisors: 1 13 3001 3617 39013 47021 10854617 141110021