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1427970790881 = 32271585473879
BaseRepresentation
bin10100110001111001101…
…100010001010111100001
312001111211201222012020200
4110301321230101113201
5141343441010302011
63012000053455413
7205111306311225
oct24617154212741
95044751865220
101427970790881
11500665314498
121b0900641569
13a48707688cb
144d185354785
1527228a56856
hex14c79b115e1

1427970790881 has 12 divisors (see below), whose sum is σ = 2070235639680. Its totient is φ = 948467682360.

The previous prime is 1427970790879. The next prime is 1427970790901. The reversal of 1427970790881 is 1880970797241.

It is not a de Polignac number, because 1427970790881 - 21 = 1427970790879 is a prime.

It is a super-2 number, since 2×14279707908812 (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1427970790381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292734501 + ... + 292739378.

It is an arithmetic number, because the mean of its divisors is an integer number (172519636640).

Almost surely, 21427970790881 is an apocalyptic number.

It is an amenable number.

1427970790881 is a deficient number, since it is larger than the sum of its proper divisors (642264848799).

1427970790881 is a wasteful number, since it uses less digits than its factorization.

1427970790881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585474156 (or 585474153 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 63.

The spelling of 1427970790881 in words is "one trillion, four hundred twenty-seven billion, nine hundred seventy million, seven hundred ninety thousand, eight hundred eighty-one".

Divisors: 1 3 9 271 813 2439 585473879 1756421637 5269264911 158663421209 475990263627 1427970790881