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1069484837281 = 7215729412
BaseRepresentation
bin11111001000000100100…
…00111000100110100001
310210020112020101212221221
433210002100320212201
5120010301104243111
62135151535415041
7140160555060400
oct17440220704641
93706466355857
101069484837281
11382625344653
12153334384481
1379b0ca7c683
1439a9887b637
151cc46a16371
hexf9024389a1

1069484837281 has 27 divisors (see below), whose sum is σ = 1253401235577. Its totient is φ = 909894454560.

The previous prime is 1069484837261. The next prime is 1069484837339. The reversal of 1069484837281 is 1827384849601.

The square root of 1069484837281 is 1034159.

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 9029750625 + 1060455086656 = 95025^2 + 1029784^2 .

It is not a de Polignac number, because 1069484837281 - 211 = 1069484835233 is a prime.

It is a super-2 number, since 2×10694848372812 (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 (1069484837261) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1136540271 + ... + 1136541211.

Almost surely, 21069484837281 is an apocalyptic number.

1069484837281 is the 1034159-th square number.

1069484837281 is the 517080-th centered octagonal number.

It is an amenable number.

1069484837281 is a deficient number, since it is larger than the sum of its proper divisors (183916398296).

1069484837281 is an frugal number, since it uses more digits than its factorization.

1069484837281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 1069484837281 in words is "one trillion, sixty-nine billion, four hundred eighty-four million, eight hundred thirty-seven thousand, two hundred eighty-one".

Divisors: 1 7 49 157 941 1099 6587 7693 24649 46109 147737 172543 885481 1034159 1207801 6198367 7239113 23194709 43388569 139020517 162362963 973143619 1136540741 6812005333 21826221169 152783548183 1069484837281