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1040112209 = 4722130047
BaseRepresentation
bin111101111111101…
…101101001010001
32200111011011201102
4331333231221101
54112232042314
6251113114145
734526544053
oct7577555121
92614134642
101040112209
11494130774
122503b8955
13137642b16
149c1cd8d3
15614a65de
hex3dfeda51

1040112209 has 4 divisors (see below), whose sum is σ = 1062242304. Its totient is φ = 1017982116.

The previous prime is 1040112197. The next prime is 1040112211. The reversal of 1040112209 is 9022110401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1040112209 - 224 = 1023334993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040112109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11064977 + ... + 11065070.

It is an arithmetic number, because the mean of its divisors is an integer number (265560576).

Almost surely, 21040112209 is an apocalyptic number.

It is an amenable number.

1040112209 is a deficient number, since it is larger than the sum of its proper divisors (22130095).

1040112209 is an equidigital number, since it uses as much as digits as its factorization.

1040112209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22130094.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1040112209 is about 32250.7706729622. The cubic root of 1040112209 is about 1013.1958402032.

The spelling of 1040112209 in words is "one billion, forty million, one hundred twelve thousand, two hundred nine".

Divisors: 1 47 22130047 1040112209