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10112009 = 194312377
BaseRepresentation
bin100110100100…
…110000001001
3201000202001212
4212210300021
510042041014
61000422505
7151644035
oct46446011
921022055
1010112009
115787336
123477a35
13213084b
1414b31c5
15d4b23e
hex9a4c09

10112009 has 8 divisors (see below), whose sum is σ = 10892640. Its totient is φ = 9356256.

The previous prime is 10111993. The next prime is 10112027. The reversal of 10112009 is 90021101.

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

It is a cyclic number.

It is not a de Polignac number, because 10112009 - 24 = 10111993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111984 and 10112002.

It is not an unprimeable number, because it can be changed into a prime (10112209) 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, 5372 + ... + 7005.

It is an arithmetic number, because the mean of its divisors is an integer number (1361580).

Almost surely, 210112009 is an apocalyptic number.

10112009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10112009 is a deficient number, since it is larger than the sum of its proper divisors (780631).

10112009 is a wasteful number, since it uses less digits than its factorization.

10112009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12439.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 10112009 is about 3179.9385214183. The cubic root of 10112009 is about 216.2448711849.

The spelling of 10112009 in words is "ten million, one hundred twelve thousand, nine".

Divisors: 1 19 43 817 12377 235163 532211 10112009