Search a number
-
+
1090677181 = 11223391907
BaseRepresentation
bin100000100000010…
…0110100110111101
32211000022010211011
41001000212212331
54213203132211
6300120555221
736012413566
oct10100464675
92730263734
101090677181
1150a727a00
12265322b11
13144c68419
14a4bd316d
1565b43921
hex410269bd

1090677181 has 12 divisors (see below), whose sum is σ = 1250970336. Its totient is φ = 948412520.

The previous prime is 1090677179. The next prime is 1090677193. The reversal of 1090677181 is 1817760901.

It is not a de Polignac number, because 1090677181 - 21 = 1090677179 is a prime.

It is a super-2 number, since 2×10906771812 = 2379153426308213522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090677281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193171 + ... + 198736.

It is an arithmetic number, because the mean of its divisors is an integer number (104247528).

Almost surely, 21090677181 is an apocalyptic number.

1090677181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1090677181 is a deficient number, since it is larger than the sum of its proper divisors (160293155).

1090677181 is a wasteful number, since it uses less digits than its factorization.

1090677181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391952 (or 391941 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 40.

The square root of 1090677181 is about 33025.4020565988. The cubic root of 1090677181 is about 1029.3555465259.

The spelling of 1090677181 in words is "one billion, ninety million, six hundred seventy-seven thousand, one hundred eighty-one".

Divisors: 1 11 23 121 253 2783 391907 4310977 9013861 47420747 99152471 1090677181