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10665230228 = 2217156841621
BaseRepresentation
bin10011110111011001…
…00111111110010100
31000112021111211102222
421323230213332110
5133320244331403
64522144521512
7525202650452
oct117354477624
930467454388
1010665230228
114583276364
122097920298
13100c774823
147326499d2
154264b3338
hex27bb27f94

10665230228 has 12 divisors (see below), whose sum is σ = 19762044372. Its totient is φ = 5018931840.

The previous prime is 10665230221. The next prime is 10665230231. The reversal of 10665230228 is 82203256601.

It can be written as a sum of positive squares in 2 ways, for example, as 2855619844 + 7809610384 = 53438^2 + 88372^2 .

It is a super-2 number, since 2×106652302282 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10665230221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78420743 + ... + 78420878.

It is an arithmetic number, because the mean of its divisors is an integer number (1646837031).

Almost surely, 210665230228 is an apocalyptic number.

It is an amenable number.

10665230228 is a deficient number, since it is larger than the sum of its proper divisors (9096814144).

10665230228 is a wasteful number, since it uses less digits than its factorization.

10665230228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156841642 (or 156841640 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 10665230228 its reverse (82203256601), we get a palindrome (92868486829).

The spelling of 10665230228 in words is "ten billion, six hundred sixty-five million, two hundred thirty thousand, two hundred twenty-eight".

Divisors: 1 2 4 17 34 68 156841621 313683242 627366484 2666307557 5332615114 10665230228