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1052981770201 = 229244812
BaseRepresentation
bin11110101001010101001…
…10101011011111011001
310201122221002222012212021
433110222212223133121
5114223001313121301
62123422205414441
7136034604240244
oct17245246533731
93648832865767
101052981770201
11376626838039
121500a956a421
13783aca0931a
1438d70b9625b
151c5ccc9d8a1
hexf52a9ab7d9

1052981770201 has 9 divisors (see below), whose sum is σ = 1057836094653. Its totient is φ = 1048149634560.

The previous prime is 1052981770123. The next prime is 1052981770273. The reversal of 1052981770201 is 1020771892501.

The square root of 1052981770201 is 1026149.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 566029017801 + 486952752400 = 752349^2 + 697820^2 .

It is not a de Polignac number, because 1052981770201 - 231 = 1050834286553 is a prime.

It is a super-2 number, since 2×10529817702012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052981770801) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 234985881 + ... + 234990361.

Almost surely, 21052981770201 is an apocalyptic number.

1052981770201 is the 1026149-th square number.

1052981770201 is the 513075-th centered octagonal number.

It is an amenable number.

1052981770201 is a deficient number, since it is larger than the sum of its proper divisors (4854324452).

1052981770201 is an frugal number, since it uses more digits than its factorization.

1052981770201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9420 (or 4710 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 43.

The spelling of 1052981770201 in words is "one trillion, fifty-two billion, nine hundred eighty-one million, seven hundred seventy thousand, two hundred one".

Divisors: 1 229 4481 52441 1026149 20079361 234988121 4598173669 1052981770201