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1090668271 = 71140135323
BaseRepresentation
bin100000100000010…
…0100011011101111
32211000021200121011
41001000210123233
54213202341041
6300120450051
736012345610
oct10100443357
92730250534
101090668271
1150a721240
12265319927
13144c64354
14a4bcdc07
1565b40e81
hex410246ef

1090668271 has 16 divisors (see below), whose sum is σ = 1363223808. Its totient is φ = 847728000.

The previous prime is 1090668263. The next prime is 1090668307. The reversal of 1090668271 is 1728660901.

It is not a de Polignac number, because 1090668271 - 23 = 1090668263 is a prime.

It is a super-2 number, since 2×10906682712 = 2379114554732258882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090668251) 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 15 ways as a sum of consecutive naturals, for example, 13216 + ... + 48538.

It is an arithmetic number, because the mean of its divisors is an integer number (85201488).

Almost surely, 21090668271 is an apocalyptic number.

1090668271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1090668271 is a deficient number, since it is larger than the sum of its proper divisors (272555537).

1090668271 is a wasteful number, since it uses less digits than its factorization.

1090668271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35742.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1090668271 is about 33025.2671601609. The cubic root of 1090668271 is about 1029.3527435019.

The spelling of 1090668271 in words is "one billion, ninety million, six hundred sixty-eight thousand, two hundred seventy-one".

Divisors: 1 7 11 77 401 2807 4411 30877 35323 247261 388553 2719871 14164523 99151661 155809753 1090668271