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7133322681 = 324725992
BaseRepresentation
bin1101010010010110…
…11101110110111001
3200102010121100010100
412221023131312321
5104102112311211
63135455510013
7341525146062
oct65113356671
920363540110
107133322681
113030635a01
121470b28309
13898b15bc4
144b9543569
152bb3a2156
hex1a92dddb9

7133322681 has 27 divisors (see below), whose sum is σ = 10545184741. Its totient is φ = 4646596344.

The previous prime is 7133322671. The next prime is 7133322709. The reversal of 7133322681 is 1862233317.

The square root of 7133322681 is 84459.

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

It is not a de Polignac number, because 7133322681 - 29 = 7133322169 is a prime.

It is a super-2 number, since 2×71333226812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7133322631) 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, 11908420 + ... + 11909018.

Almost surely, 27133322681 is an apocalyptic number.

7133322681 is the 84459-th square number.

7133322681 is the 42230-th centered octagonal number.

It is an amenable number.

7133322681 is a deficient number, since it is larger than the sum of its proper divisors (3411862060).

7133322681 is an frugal number, since it uses more digits than its factorization.

7133322681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 649 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The cubic root of 7133322681 is about 1924.9995102939. Note that the first 3 decimals are identical.

Multiplying 7133322681 by its sum of digits (36), we get a square (256799616516 = 5067542).

Adding to 7133322681 its reverse (1862233317), we get a palindrome (8995555998).

The spelling of 7133322681 in words is "seven billion, one hundred thirty-three million, three hundred twenty-two thousand, six hundred eighty-one".

Divisors: 1 3 9 47 141 423 599 1797 2209 5391 6627 19881 28153 84459 253377 358801 1076403 1323191 3229209 3969573 11908719 16863647 50590941 151772823 792591409 2377774227 7133322681