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10722809601 = 327249312
BaseRepresentation
bin10011111110010000…
…10001011100000001
31000200021212011111100
421333020101130001
5133430014401401
64532003005013
7526502243400
oct117710213401
930607764440
1010722809601
114602823619
1220b3069769
13101b684a6a
1473a157637
1542b588b86
hex27f211701

10722809601 has 27 divisors (see below), whose sum is σ = 18020892513. Its totient is φ = 6126077160.

The previous prime is 10722809579. The next prime is 10722809611. The reversal of 10722809601 is 10690822701.

The square root of 10722809601 is 103551.

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

It is not a de Polignac number, because 10722809601 - 25 = 10722809569 is a prime.

It is a super-2 number, since 2×107228096012 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10722809611) 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, 2172106 + ... + 2177036.

Almost surely, 210722809601 is an apocalyptic number.

10722809601 is the 103551-st square number.

10722809601 is the 51776-th centered octagonal number.

It is an amenable number.

10722809601 is a deficient number, since it is larger than the sum of its proper divisors (7298082912).

10722809601 is an frugal number, since it uses more digits than its factorization.

10722809601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882 (or 4941 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

Multiplying 10722809601 by its sum of digits (36), we get a square (386021145636 = 6213062).

The spelling of 10722809601 in words is "ten billion, seven hundred twenty-two million, eight hundred nine thousand, six hundred one".

Divisors: 1 3 7 9 21 49 63 147 441 4931 14793 34517 44379 103551 241619 310653 724857 2174571 24314761 72944283 170203327 218832849 510609981 1191423289 1531829943 3574269867 10722809601