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2153012368 = 241310351021
BaseRepresentation
bin1000000001010100…
…0101110010010000
312120001021100201211
42000111011302100
513402132343433
6553350305504
7104232205663
oct20025056220
95501240654
102153012368
11a05357071
12501058294
1328408c420
14165d296da
15c90398cd
hex80545c90

2153012368 has 20 divisors (see below), whose sum is σ = 4492343548. Its totient is φ = 993697920.

The previous prime is 2153012353. The next prime is 2153012369. The reversal of 2153012368 is 8632103512.

It can be written as a sum of positive squares in 2 ways, for example, as 249260944 + 1903751424 = 15788^2 + 43632^2 .

It is not an unprimeable number, because it can be changed into a prime (2153012369) 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, 5175303 + ... + 5175718.

Almost surely, 22153012368 is an apocalyptic number.

It is an amenable number.

2153012368 is an abundant number, since it is smaller than the sum of its proper divisors (2339331180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2153012368 is a wasteful number, since it uses less digits than its factorization.

2153012368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10351042 (or 10351036 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2153012368 is about 46400.5643069133. The cubic root of 2153012368 is about 1291.2653825605.

The spelling of 2153012368 in words is "two billion, one hundred fifty-three million, twelve thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 13 16 26 52 104 208 10351021 20702042 41404084 82808168 134563273 165616336 269126546 538253092 1076506184 2153012368