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2225312061 = 37407326017
BaseRepresentation
bin1000010010100011…
…1001000100111101
312202002022120021020
42010220321010331
514024134441221
61004452054353
7106100561160
oct20450710475
95662276236
102225312061
11a42148985
125213043b9
132960548cb
14171789ad7
15d056bac6
hex84a3913d

2225312061 has 16 divisors (see below), whose sum is σ = 3391914624. Its totient is φ = 1271245824.

The previous prime is 2225312059. The next prime is 2225312083. The reversal of 2225312061 is 1602135222.

It is not a de Polignac number, because 2225312061 - 21 = 2225312059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225302061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72525 + ... + 98541.

It is an arithmetic number, because the mean of its divisors is an integer number (211994664).

Almost surely, 22225312061 is an apocalyptic number.

2225312061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2225312061 is a deficient number, since it is larger than the sum of its proper divisors (1166602563).

2225312061 is a wasteful number, since it uses less digits than its factorization.

2225312061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30100.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2225312061 is about 47173.2133842926. The cubic root of 2225312061 is about 1305.5604157810.

Adding to 2225312061 its reverse (1602135222), we get a palindrome (3827447283).

The spelling of 2225312061 in words is "two billion, two hundred twenty-five million, three hundred twelve thousand, sixty-one".

Divisors: 1 3 7 21 4073 12219 26017 28511 78051 85533 182119 546357 105967241 317901723 741770687 2225312061