Search a number
-
+
1066914431 = 11439220939
BaseRepresentation
bin111111100101111…
…101001001111111
32202100120212110022
4333211331021333
54141112230211
6253511402355
735303423462
oct7745751177
92670525408
101066914431
114a8277670
122593833bb
1314006841b
14a19a92d9
15639ecbdb
hex3f97d27f

1066914431 has 8 divisors (see below), whose sum is σ = 1166563200. Its totient is φ = 967708440.

The previous prime is 1066914413. The next prime is 1066914439. The reversal of 1066914431 is 1344196601.

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 1066914431 - 26 = 1066914367 is a prime.

It is a super-2 number, since 2×10669144312 = 2276612806152107522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066914391 and 1066914400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066914439) 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, 105641 + ... + 115298.

It is an arithmetic number, because the mean of its divisors is an integer number (145820400).

Almost surely, 21066914431 is an apocalyptic number.

1066914431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1066914431 is a deficient number, since it is larger than the sum of its proper divisors (99648769).

1066914431 is a wasteful number, since it uses less digits than its factorization.

1066914431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221389.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1066914431 is about 32663.6561180772. The cubic root of 1066914431 is about 1021.8250137943.

The spelling of 1066914431 in words is "one billion, sixty-six million, nine hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 11 439 4829 220939 2430329 96992221 1066914431