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1005352161 = 31130465217
BaseRepresentation
bin111011111011000…
…111010011100001
32121001202011220020
4323323013103201
54024332232121
6243432104053
733625231602
oct7373072341
92531664806
101005352161
11476549a60
12240835029
13130392348
1497741da9
155d3dc1c6
hex3bec74e1

1005352161 has 8 divisors (see below), whose sum is σ = 1462330464. Its totient is φ = 609304320.

The previous prime is 1005352157. The next prime is 1005352189. The reversal of 1005352161 is 1612535001.

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

It is not a de Polignac number, because 1005352161 - 22 = 1005352157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1005352121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15232576 + ... + 15232641.

It is an arithmetic number, because the mean of its divisors is an integer number (182791308).

Almost surely, 21005352161 is an apocalyptic number.

1005352161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1005352161 is a deficient number, since it is larger than the sum of its proper divisors (456978303).

1005352161 is a wasteful number, since it uses less digits than its factorization.

1005352161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30465231.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1005352161 is about 31707.2887677266. The cubic root of 1005352161 is about 1001.7808802495.

Adding to 1005352161 its reverse (1612535001), we get a palindrome (2617887162).

The spelling of 1005352161 in words is "one billion, five million, three hundred fifty-two thousand, one hundred sixty-one".

Divisors: 1 3 11 33 30465217 91395651 335117387 1005352161