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141664243 = 7210328069
BaseRepresentation
bin10000111000110…
…01111111110011
3100212120021210211
420130121333303
5242231223433
622020204551
73340061200
oct1034317763
9325507724
10141664243
1172a69496
123b539757
13234709c6
1414b58ca7
15c6848cd
hex8719ff3

141664243 has 12 divisors (see below), whose sum is σ = 166398960. Its totient is φ = 120243312.

The previous prime is 141664219. The next prime is 141664249. The reversal of 141664243 is 342466141.

It is a de Polignac number, because none of the positive numbers 2k-141664243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (141664249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8988 + ... + 19081.

It is an arithmetic number, because the mean of its divisors is an integer number (13866580).

Almost surely, 2141664243 is an apocalyptic number.

141664243 is a deficient number, since it is larger than the sum of its proper divisors (24734717).

141664243 is a wasteful number, since it uses less digits than its factorization.

141664243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28186 (or 28179 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 141664243 is about 11902.2788994377. The cubic root of 141664243 is about 521.2988278612.

The spelling of 141664243 in words is "one hundred forty-one million, six hundred sixty-four thousand, two hundred forty-three".

Divisors: 1 7 49 103 721 5047 28069 196483 1375381 2891107 20237749 141664243