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64323848121 = 3136271263009
BaseRepresentation
bin111011111010000000…
…000000011110111001
320011000211200001022020
4323322000000132321
52023213401114441
645314443145053
74435001454621
oct737200003671
9204024601266
1064323848121
1125309154165
1210571b15189
1360b14a94c0
143182c27881
151a17147e66
hexefa0007b9

64323848121 has 16 divisors (see below), whose sum is σ = 92377528320. Its totient is φ = 39577443840.

The previous prime is 64323848119. The next prime is 64323848207. The reversal of 64323848121 is 12184832346.

It is not a de Polignac number, because 64323848121 - 21 = 64323848119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64323848321) 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 15 ways as a sum of consecutive naturals, for example, 113065 + ... + 376073.

It is an arithmetic number, because the mean of its divisors is an integer number (5773595520).

Almost surely, 264323848121 is an apocalyptic number.

It is an amenable number.

64323848121 is a deficient number, since it is larger than the sum of its proper divisors (28053680199).

64323848121 is a wasteful number, since it uses less digits than its factorization.

64323848121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269296.

The product of its digits is 221184, while the sum is 42.

The spelling of 64323848121 in words is "sixty-four billion, three hundred twenty-three million, eight hundred forty-eight thousand, one hundred twenty-one".

Divisors: 1 3 13 39 6271 18813 81523 244569 263009 789027 3419117 10257351 1649329439 4947988317 21441282707 64323848121