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1072225061 = 7853136537
BaseRepresentation
bin111111111010001…
…101101100100101
32202201120200021022
4333322031230211
54143442200221
6254221300525
735366522405
oct7772155445
92681520238
101072225061
11500274616
1225b104745
131411a76cb
14a258c805
15641eb4ab
hex3fe8db25

1072225061 has 4 divisors (see below), whose sum is σ = 1072369452. Its totient is φ = 1072080672.

The previous prime is 1072225027. The next prime is 1072225079. The reversal of 1072225061 is 1605222701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1605222701 = 2715923331.

It can be written as a sum of positive squares in 2 ways, for example, as 327972100 + 744252961 = 18110^2 + 27281^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072225061 - 26 = 1072224997 is a prime.

It is a super-2 number, since 2×10722250612 = 2299333162872907442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1072225061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072225001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60416 + ... + 76121.

It is an arithmetic number, because the mean of its divisors is an integer number (268092363).

Almost surely, 21072225061 is an apocalyptic number.

It is an amenable number.

1072225061 is a deficient number, since it is larger than the sum of its proper divisors (144391).

1072225061 is an equidigital number, since it uses as much as digits as its factorization.

1072225061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144390.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1072225061 is about 32744.8478542808. The cubic root of 1072225061 is about 1023.5176068141.

Adding to 1072225061 its reverse (1605222701), we get a palindrome (2677447762).

The spelling of 1072225061 in words is "one billion, seventy-two million, two hundred twenty-five thousand, sixty-one".

Divisors: 1 7853 136537 1072225061