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2056180897 = 4994120603
BaseRepresentation
bin111101010001110…
…1101010010100001
312022022001210221001
41322203231102201
513202340242042
6540011032001
7101645151331
oct17243552241
95268053831
102056180897
1196572a161
1249473b601
13269cb7bb4
141571210c1
15c07adbb7
hex7a8ed4a1

2056180897 has 4 divisors (see below), whose sum is σ = 2060302000. Its totient is φ = 2052059796.

The previous prime is 2056180879. The next prime is 2056180913. The reversal of 2056180897 is 7980816502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7980816502 = 23990408251.

It is a cyclic number.

It is not a de Polignac number, because 2056180897 - 223 = 2047792289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2056180807) 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, 2059803 + ... + 2060800.

It is an arithmetic number, because the mean of its divisors is an integer number (515075500).

Almost surely, 22056180897 is an apocalyptic number.

It is an amenable number.

2056180897 is a deficient number, since it is larger than the sum of its proper divisors (4121103).

2056180897 is an equidigital number, since it uses as much as digits as its factorization.

2056180897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121102.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 2056180897 is about 45345.1309072981. The cubic root of 2056180897 is about 1271.6095279146.

The spelling of 2056180897 in words is "two billion, fifty-six million, one hundred eighty thousand, eight hundred ninety-seven".

Divisors: 1 499 4120603 2056180897