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1130809608 = 233215705689
BaseRepresentation
bin100001101100110…
…1100100100001000
32220210211002011100
41003121230210020
54303441401413
6304113101400
740010503005
oct10331544410
92823732140
101130809608
11530348aa5
12276857860
1315037a316
14aa27c8ac
156941ea73
hex4366c908

1130809608 has 24 divisors (see below), whose sum is σ = 3062609550. Its totient is φ = 376936512.

The previous prime is 1130809597. The next prime is 1130809637. The reversal of 1130809608 is 8069080311.

1130809608 is a `hidden beast` number, since 11 + 30 + 8 + 0 + 9 + 608 = 666.

It can be written as a sum of positive squares in only one way, i.e., 868952484 + 261857124 = 29478^2 + 16182^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×11308096082 = 2557460739090227328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7852773 + ... + 7852916.

Almost surely, 21130809608 is an apocalyptic number.

1130809608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1130809608 is an abundant number, since it is smaller than the sum of its proper divisors (1931799942).

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

1130809608 is a wasteful number, since it uses less digits than its factorization.

1130809608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15705701 (or 15705694 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1130809608 is about 33627.5126644835. The cubic root of 1130809608 is about 1041.8291306820.

Adding to 1130809608 its reverse (8069080311), we get a palindrome (9199889919).

The spelling of 1130809608 in words is "one billion, one hundred thirty million, eight hundred nine thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 15705689 31411378 47117067 62822756 94234134 125645512 141351201 188468268 282702402 376936536 565404804 1130809608