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2152042146 = 232119557897
BaseRepresentation
bin1000000001000101…
…1000111010100010
312112222110001211200
42000101120322202
513401410322041
6553313422030
7104221025232
oct20021307242
95488401750
102152042146
11a04854131
1250086a916
13283b0c927
14165b55cc2
15c8de71b6
hex80458ea2

2152042146 has 12 divisors (see below), whose sum is σ = 4662758022. Its totient is φ = 717347376.

The previous prime is 2152042133. The next prime is 2152042181. The reversal of 2152042146 is 6412402512.

2152042146 is a `hidden beast` number, since 215 + 20 + 421 + 4 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1888337025 + 263705121 = 43455^2 + 16239^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 59778931 + ... + 59778966.

Almost surely, 22152042146 is an apocalyptic number.

2152042146 is an abundant number, since it is smaller than the sum of its proper divisors (2510715876).

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

2152042146 is a wasteful number, since it uses less digits than its factorization.

2152042146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119557905 (or 119557902 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2152042146 is about 46390.1082775197. The cubic root of 2152042146 is about 1291.0713904381.

Adding to 2152042146 its reverse (6412402512), we get a palindrome (8564444658).

The spelling of 2152042146 in words is "two billion, one hundred fifty-two million, forty-two thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 119557897 239115794 358673691 717347382 1076021073 2152042146