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11204031 = 3101103359
BaseRepresentation
bin101010101111…
…010110111111
3210002020001010
4222233112333
510332012111
61040050303
7164142546
oct52572677
923066033
1011204031
116362833
123903993
132423907
1416b915d
15eb4aa6
hexaaf5bf

11204031 has 16 divisors (see below), whose sum is σ = 15275520. Its totient is φ = 7303200.

The previous prime is 11204023. The next prime is 11204033. The reversal of 11204031 is 13040211.

It is a happy number.

It is not a de Polignac number, because 11204031 - 23 = 11204023 is a prime.

It is a super-2 number, since 2×112040312 = 251060621297922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11203998 and 11204016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11204033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31030 + ... + 31388.

It is an arithmetic number, because the mean of its divisors is an integer number (954720).

Almost surely, 211204031 is an apocalyptic number.

11204031 is a deficient number, since it is larger than the sum of its proper divisors (4071489).

11204031 is a wasteful number, since it uses less digits than its factorization.

11204031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11204031 is about 3347.2422977729. The cubic root of 11204031 is about 223.7646270724.

Adding to 11204031 its reverse (13040211), we get a palindrome (24244242).

It can be divided in two parts, 1120 and 4031, that added together give a triangular number (5151 = T101).

The spelling of 11204031 in words is "eleven million, two hundred four thousand, thirty-one".

Divisors: 1 3 101 103 303 309 359 1077 10403 31209 36259 36977 108777 110931 3734677 11204031