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7286522945 = 513532115101
BaseRepresentation
bin1101100100100111…
…11000010001000001
3200210210212201101012
412302103320101001
5104410322213240
63203011250305
7345365265062
oct66223702101
920723781335
107286522945
1130aa063599
1214b42a9995
138c1795650
144d1a22569
152c9a64b65
hex1b24f8441

7286522945 has 16 divisors (see below), whose sum is σ = 9594102672. Its totient is φ = 5279289600.

The previous prime is 7286522917. The next prime is 7286522953. The reversal of 7286522945 is 5492256827.

7286522945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 354794896 + 6931728049 = 18836^2 + 83257^2 .

It is not a de Polignac number, because 7286522945 - 220 = 7285474369 is a prime.

It is a super-2 number, since 2×72865229452 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7286522893 and 7286522902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054106 + ... + 1060995.

It is an arithmetic number, because the mean of its divisors is an integer number (599631417).

Almost surely, 27286522945 is an apocalyptic number.

It is an amenable number.

7286522945 is a deficient number, since it is larger than the sum of its proper divisors (2307579727).

7286522945 is a wasteful number, since it uses less digits than its factorization.

7286522945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115172.

The product of its digits is 2419200, while the sum is 50.

The square root of 7286522945 is about 85361.1325194318. The cubic root of 7286522945 is about 1938.6828967811.

The spelling of 7286522945 in words is "seven billion, two hundred eighty-six million, five hundred twenty-two thousand, nine hundred forty-five".

Divisors: 1 5 13 53 65 265 689 3445 2115101 10575505 27496313 112100353 137481565 560501765 1457304589 7286522945