Search a number
-
+
1071012217 = 1197364747
BaseRepresentation
bin111111110101100…
…101100101111001
32202122022001120011
4333311211211321
54143134342332
6254135301521
735353311412
oct7765454571
92678261504
101071012217
114aa616370
1225a81a8a1
13140b71652
14a2354809
156405be47
hex3fd65979

1071012217 has 4 divisors (see below), whose sum is σ = 1168376976. Its totient is φ = 973647460.

The previous prime is 1071012169. The next prime is 1071012221. The reversal of 1071012217 is 7122101701.

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 1071012217 - 215 = 1070979449 is a prime.

It is a super-2 number, since 2×10710122172 = 2294134337926510178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071012317) 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, 48682363 + ... + 48682384.

It is an arithmetic number, because the mean of its divisors is an integer number (292094244).

Almost surely, 21071012217 is an apocalyptic number.

It is an amenable number.

1071012217 is a deficient number, since it is larger than the sum of its proper divisors (97364759).

1071012217 is an equidigital number, since it uses as much as digits as its factorization.

1071012217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97364758.

The product of its (nonzero) digits is 196, while the sum is 22.

The square root of 1071012217 is about 32726.3229984672. The cubic root of 1071012217 is about 1023.1315449744.

Adding to 1071012217 its reverse (7122101701), we get a palindrome (8193113918).

The spelling of 1071012217 in words is "one billion, seventy-one million, twelve thousand, two hundred seventeen".

Divisors: 1 11 97364747 1071012217