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427748940983 = 71319794931123
BaseRepresentation
bin1100011100101111101…
…00101101110010110111
31111220002120002121220202
412032113310231302313
524002012212102413
6524301040151115
742622006002410
oct6162764556267
91456076077822
10427748940983
11155453142481
126aa9830849b
133144b535650
14169bb67c807
15b1d7abbe58
hex6397d2dcb7

427748940983 has 32 divisors (see below), whose sum is σ = 554256192000. Its totient is φ = 320575522176.

The previous prime is 427748940979. The next prime is 427748941033. The reversal of 427748940983 is 389049847724.

It is not a de Polignac number, because 427748940983 - 22 = 427748940979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427748940973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13728260 + ... + 13759382.

It is an arithmetic number, because the mean of its divisors is an integer number (17320506000).

Almost surely, 2427748940983 is an apocalyptic number.

427748940983 is a deficient number, since it is larger than the sum of its proper divisors (126507251017).

427748940983 is a wasteful number, since it uses less digits than its factorization.

427748940983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39111.

The product of its (nonzero) digits is 97542144, while the sum is 65.

The spelling of 427748940983 in words is "four hundred twenty-seven billion, seven hundred forty-eight million, nine hundred forty thousand, nine hundred eighty-three".

Divisors: 1 7 13 19 91 133 247 1729 7949 31123 55643 103337 151031 217861 404599 591337 723359 1057217 1963403 2832193 4139359 7687381 13743821 53811667 247396727 1731777089 3216157451 4700537813 22513102157 32903764691 61106991569 427748940983