Search a number
-
+
220101469 = 731443067
BaseRepresentation
bin11010001111001…
…11101101011101
3120100011022110021
431013213231131
5422321221334
633501312141
75311555150
oct1507475535
9510138407
10220101469
11103272545
1261865651
13367a4973
1421335c97
15144ca3b4
hexd1e7b5d

220101469 has 4 divisors (see below), whose sum is σ = 251544544. Its totient is φ = 188658396.

The previous prime is 220101463. The next prime is 220101487. The reversal of 220101469 is 964101022.

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 220101469 - 27 = 220101341 is a prime.

It is a super-2 number, since 2×2201014692 = 96889313311915922, 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 (220101463) 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, 15721527 + ... + 15721540.

It is an arithmetic number, because the mean of its divisors is an integer number (62886136).

Almost surely, 2220101469 is an apocalyptic number.

It is an amenable number.

220101469 is a deficient number, since it is larger than the sum of its proper divisors (31443075).

220101469 is an equidigital number, since it uses as much as digits as its factorization.

220101469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31443074.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 220101469 is about 14835.8170991692. The cubic root of 220101469 is about 603.7738698917.

The spelling of 220101469 in words is "two hundred twenty million, one hundred one thousand, four hundred sixty-nine".

Divisors: 1 7 31443067 220101469