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1090232072 = 23136279009
BaseRepresentation
bin100000011111011…
…1001111100001000
32210222110112020122
41000332321330020
54213044411242
6300103242412
736005551106
oct10076717410
92728415218
101090232072
1150a453546
12265149408
13144b40947
14a4b18c76
1565aa6ad2
hex40fb9f08

1090232072 has 8 divisors (see below), whose sum is σ = 2044185150. Its totient is φ = 545116032.

The previous prime is 1090232071. The next prime is 1090232089. The reversal of 1090232072 is 2702320901.

It can be written as a sum of positive squares in only one way, i.e., 828633796 + 261598276 = 28786^2 + 16174^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1090232071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68139497 + ... + 68139512.

Almost surely, 21090232072 is an apocalyptic number.

It is an amenable number.

1090232072 is a deficient number, since it is larger than the sum of its proper divisors (953953078).

1090232072 is a wasteful number, since it uses less digits than its factorization.

1090232072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136279015 (or 136279011 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1090232072 is about 33018.6624804822. The cubic root of 1090232072 is about 1029.2154996609.

Adding to 1090232072 its reverse (2702320901), we get a palindrome (3792552973).

The spelling of 1090232072 in words is "one billion, ninety million, two hundred thirty-two thousand, seventy-two".

Divisors: 1 2 4 8 136279009 272558018 545116036 1090232072