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127664303 = 1310197231
BaseRepresentation
bin1111001110000…
…00000010101111
322220020000111112
413213000002233
5230140224203
620400142235
73110062064
oct747000257
9286200445
10127664303
1166077098
123690797b
13205ab610
1412d52c6b
15b31b6d8
hex79c00af

127664303 has 8 divisors (see below), whose sum is σ = 138847296. Its totient is φ = 116676000.

The previous prime is 127664297. The next prime is 127664353. The reversal of 127664303 is 303466721.

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 127664303 - 26 = 127664239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127664303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127664353) 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 7 ways as a sum of consecutive naturals, for example, 47303 + ... + 49928.

It is an arithmetic number, because the mean of its divisors is an integer number (17355912).

Almost surely, 2127664303 is an apocalyptic number.

127664303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

127664303 is a deficient number, since it is larger than the sum of its proper divisors (11182993).

127664303 is a wasteful number, since it uses less digits than its factorization.

127664303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97345.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 127664303 is about 11298.8629073903. The cubic root of 127664303 is about 503.5274595357.

The spelling of 127664303 in words is "one hundred twenty-seven million, six hundred sixty-four thousand, three hundred three".

Divisors: 1 13 101 1313 97231 1264003 9820331 127664303