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2153015508 = 223723661591
BaseRepresentation
bin1000000001010100…
…0110100011010100
312120001021112001010
42000111012203110
513402132444013
6553350332220
7104232221100
oct20025064324
95501245033
102153015508
11a05359466
1250105a070
13284090997
14165d2a900
15c903a7c3
hex805468d4

2153015508 has 36 divisors (see below), whose sum is σ = 5843900832. Its totient is φ = 615147120.

The previous prime is 2153015497. The next prime is 2153015509. The reversal of 2153015508 is 8055103512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153015509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1830208 + ... + 1831383.

Almost surely, 22153015508 is an apocalyptic number.

2153015508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2153015508 is an abundant number, since it is smaller than the sum of its proper divisors (3690885324).

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

2153015508 is a wasteful number, since it uses less digits than its factorization.

2153015508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661612 (or 3661603 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 2153015508 is about 46400.5981426964. The cubic root of 2153015508 is about 1291.2660102967.

The spelling of 2153015508 in words is "two billion, one hundred fifty-three million, fifteen thousand, five hundred eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 3661591 7323182 10984773 14646364 21969546 25631137 43939092 51262274 76893411 102524548 153786822 179417959 307573644 358835918 538253877 717671836 1076507754 2153015508