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141297247 = 7138291873
BaseRepresentation
bin10000110110000…
…00011001011111
3100211212122101101
420123000121133
5242133002442
622004253531
73334002220
oct1033003137
9324778341
10141297247
1172838793
123b3a12a7
1323372950
1414aa1247
15c610cb7
hex86c065f

141297247 has 16 divisors (see below), whose sum is σ = 174207040. Its totient is φ = 111601152.

The previous prime is 141297241. The next prime is 141297293. The reversal of 141297247 is 742792141.

It is a de Polignac number, because none of the positive numbers 2k-141297247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141297241) 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 15 ways as a sum of consecutive naturals, for example, 74503 + ... + 76375.

It is an arithmetic number, because the mean of its divisors is an integer number (10887940).

Almost surely, 2141297247 is an apocalyptic number.

141297247 is a deficient number, since it is larger than the sum of its proper divisors (32909793).

141297247 is a wasteful number, since it uses less digits than its factorization.

141297247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722.

The product of its digits is 28224, while the sum is 37.

The square root of 141297247 is about 11886.8518540445. The cubic root of 141297247 is about 520.8482789069.

The spelling of 141297247 in words is "one hundred forty-one million, two hundred ninety-seven thousand, two hundred forty-seven".

Divisors: 1 7 13 91 829 1873 5803 10777 13111 24349 75439 170443 1552717 10869019 20185321 141297247