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11230554145 = 56136821489
BaseRepresentation
bin10100111010110010…
…01010100000100001
31001222200021021001211
422131121022200201
5141000010213040
65054221430121
7545206064236
oct123531124041
931880237054
1011230554145
11484339a608
12221510b341
13109c91bc15
1478776778d
1545ae318ea
hex29d64a821

11230554145 has 8 divisors (see below), whose sum is σ = 13697594280. Its totient is φ = 8837157120.

The previous prime is 11230554131. The next prime is 11230554193. The reversal of 11230554145 is 54145503211.

It can be written as a sum of positive squares in 4 ways, for example, as 1085834304 + 10144719841 = 32952^2 + 100721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-11230554145 is a prime.

It is a super-2 number, since 2×112305541452 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18410440 + ... + 18411049.

It is an arithmetic number, because the mean of its divisors is an integer number (1712199285).

Almost surely, 211230554145 is an apocalyptic number.

It is an amenable number.

11230554145 is a deficient number, since it is larger than the sum of its proper divisors (2467040135).

11230554145 is an equidigital number, since it uses as much as digits as its factorization.

11230554145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36821555.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 11230554145 in words is "eleven billion, two hundred thirty million, five hundred fifty-four thousand, one hundred forty-five".

Divisors: 1 5 61 305 36821489 184107445 2246110829 11230554145