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427743197801 = 3154125504931
BaseRepresentation
bin1100011100101110111…
…10110011101001101001
31111220002011021211202022
412032113132303221221
524002004224312201
6524300313114225
742621606122423
oct6162736635151
91456064254668
10427743197801
1115544a97a547
126aa963b8975
133144a2a450a
14169ba9c5813
15b1d733541b
hex63977b3a69

427743197801 has 8 divisors (see below), whose sum is σ = 442357540608. Its totient is φ = 413179866000.

The previous prime is 427743197771. The next prime is 427743197813. The reversal of 427743197801 is 108791347724.

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 427743197801 - 214 = 427743181417 is a prime.

It is a super-2 number, since 2×4277431978012 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427743190801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12735695 + ... + 12769236.

It is an arithmetic number, because the mean of its divisors is an integer number (55294692576).

Almost surely, 2427743197801 is an apocalyptic number.

It is an amenable number.

427743197801 is a deficient number, since it is larger than the sum of its proper divisors (14614342807).

427743197801 is a wasteful number, since it uses less digits than its factorization.

427743197801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505503.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 427743197801 in words is "four hundred twenty-seven billion, seven hundred forty-three million, one hundred ninety-seven thousand, eight hundred one".

Divisors: 1 31 541 16771 25504931 790652861 13798167671 427743197801