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1085232909 = 31392602477
BaseRepresentation
bin100000010101111…
…0101011100001101
32210122001112200110
41000223311130031
54210304423114
6255404150233
735615220225
oct10053653415
92718045613
101085232909
11507649602
12263538379
13143ab0367
14a41b7085
156541a759
hex40af570d

1085232909 has 8 divisors (see below), whose sum is σ = 1457387680. Its totient is φ = 718283376.

The previous prime is 1085232901. The next prime is 1085232917. The reversal of 1085232909 is 9092325801.

It is an interprime number because it is at equal distance from previous prime (1085232901) and next prime (1085232917).

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

It is not a de Polignac number, because 1085232909 - 23 = 1085232901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085232901) 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, 1300822 + ... + 1301655.

It is an arithmetic number, because the mean of its divisors is an integer number (182173460).

Almost surely, 21085232909 is an apocalyptic number.

It is an amenable number.

1085232909 is a deficient number, since it is larger than the sum of its proper divisors (372154771).

1085232909 is a wasteful number, since it uses less digits than its factorization.

1085232909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602619.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1085232909 is about 32942.8734174783. The cubic root of 1085232909 is about 1027.6399634107.

The spelling of 1085232909 in words is "one billion, eighty-five million, two hundred thirty-two thousand, nine hundred nine".

Divisors: 1 3 139 417 2602477 7807431 361744303 1085232909