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1005132472 = 23265747287
BaseRepresentation
bin111011111010010…
…001101010111000
32121001100000112121
4323322101222320
54024303214342
6243423251024
733623325241
oct7372215270
92531300477
101005132472
114764099a3
12240749a74
13130316356
14976c5cc8
155d397067
hex3be91ab8

1005132472 has 16 divisors (see below), whose sum is σ = 1885372560. Its totient is φ = 502366464.

The previous prime is 1005132461. The next prime is 1005132473. The reversal of 1005132472 is 2742315001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005132473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2388 + ... + 44899.

It is an arithmetic number, because the mean of its divisors is an integer number (117835785).

Almost surely, 21005132472 is an apocalyptic number.

It is an amenable number.

1005132472 is a deficient number, since it is larger than the sum of its proper divisors (880240088).

1005132472 is a wasteful number, since it uses less digits than its factorization.

1005132472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49950 (or 49946 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1005132472 is about 31703.8242488189. The cubic root of 1005132472 is about 1001.7079053985.

Adding to 1005132472 its reverse (2742315001), we get a palindrome (3747447473).

The spelling of 1005132472 in words is "one billion, five million, one hundred thirty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 2657 5314 10628 21256 47287 94574 189148 378296 125641559 251283118 502566236 1005132472