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387748708063 = 2316858639481
BaseRepresentation
bin1011010010001111001…
…11111011111011011111
31101001211212121020220121
411221013213323323133
522323102132124223
6454043532255411
740004526431503
oct5510747737337
91331755536817
10387748708063
1113a497045442
1263194311567
132a745401082
1414aa5050303
15a14608b15d
hex5a479fbedf

387748708063 has 4 divisors (see below), whose sum is σ = 404607347568. Its totient is φ = 370890068560.

The previous prime is 387748708037. The next prime is 387748708097. The reversal of 387748708063 is 360807847783.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 387748708063 - 25 = 387748708031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387748707992 and 387748708010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387748705063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8429319718 + ... + 8429319763.

It is an arithmetic number, because the mean of its divisors is an integer number (101151836892).

Almost surely, 2387748708063 is an apocalyptic number.

387748708063 is a deficient number, since it is larger than the sum of its proper divisors (16858639505).

387748708063 is a wasteful number, since it uses less digits than its factorization.

387748708063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16858639504.

The product of its (nonzero) digits is 37933056, while the sum is 61.

The spelling of 387748708063 in words is "three hundred eighty-seven billion, seven hundred forty-eight million, seven hundred eight thousand, sixty-three".

Divisors: 1 23 16858639481 387748708063