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141443449 = 7216992
BaseRepresentation
bin10000110111001…
…00000101111001
3100212011001221021
420123210011321
5242202142244
622011342441
73335151400
oct1033440571
9325131837
10141443449
1172928614
123b451a21
13233c4364
1414adc637
15c63e284
hex86e4179

141443449 has 9 divisors (see below), whose sum is σ = 164633157. Its totient is φ = 121165884.

The previous prime is 141443447. The next prime is 141443459. The reversal of 141443449 is 944344141.

The square root of 141443449 is 11893.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 141443449 - 21 = 141443447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141443441) 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 8 ways as a sum of consecutive naturals, for example, 82402 + ... + 84100.

It is an arithmetic number, because the mean of its divisors is an integer number (18292573).

Almost surely, 2141443449 is an apocalyptic number.

141443449 is the 11893-rd square number.

141443449 is the 5947-th centered octagonal number.

It is an amenable number.

141443449 is a deficient number, since it is larger than the sum of its proper divisors (23189708).

141443449 is an frugal number, since it uses more digits than its factorization.

141443449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412 (or 1706 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The cubic root of 141443449 is about 521.0278596906.

The spelling of 141443449 in words is "one hundred forty-one million, four hundred forty-three thousand, four hundred forty-nine".

Divisors: 1 7 49 1699 11893 83251 2886601 20206207 141443449