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1091008330 = 25109100833
BaseRepresentation
bin100000100000111…
…0111011101001010
32211000220222001221
41001001313131022
54213244231310
6300132032254
736015263206
oct10101673512
92730828057
101091008330
1150a933785
1226546268a
13145053079
14a4c7bb06
1565babada
hex4107774a

1091008330 has 8 divisors (see below), whose sum is σ = 1963815012. Its totient is φ = 436403328.

The previous prime is 1091008313. The next prime is 1091008343. The reversal of 1091008330 is 338001901.

It can be written as a sum of positive squares in 2 ways, for example, as 1063477321 + 27531009 = 32611^2 + 5247^2 .

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

It is a super-2 number, since 2×10910083302 = 2380598352258777800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1091008295 and 1091008304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54550407 + ... + 54550426.

Almost surely, 21091008330 is an apocalyptic number.

1091008330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1091008330 is a deficient number, since it is larger than the sum of its proper divisors (872806682).

1091008330 is a wasteful number, since it uses less digits than its factorization.

1091008330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109100840.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1091008330 is about 33030.4152259701. The cubic root of 1091008330 is about 1029.4597128712.

The spelling of 1091008330 in words is "one billion, ninety-one million, eight thousand, three hundred thirty".

Divisors: 1 2 5 10 109100833 218201666 545504165 1091008330