Search a number
-
+
22941869 = 39175857
BaseRepresentation
bin101011110000…
…1000010101101
31121011120022212
41113201002231
521333114434
62135420205
7366000626
oct127410255
947146285
1022941869
1111a4a625
127824665
1349a3492
143092a4d
1520328ce
hex15e10ad

22941869 has 4 divisors (see below), whose sum is σ = 22951644. Its totient is φ = 22932096.

The previous prime is 22941851. The next prime is 22941881. The reversal of 22941869 is 96814922.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20340100 + 2601769 = 4510^2 + 1613^2 .

It is a cyclic number.

It is not a de Polignac number, because 22941869 - 216 = 22876333 is a prime.

It is a super-2 number, since 2×229418692 = 1052658706426322, 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 (22941839) 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, 989 + ... + 6845.

It is an arithmetic number, because the mean of its divisors is an integer number (5737911).

Almost surely, 222941869 is an apocalyptic number.

It is an amenable number.

22941869 is a deficient number, since it is larger than the sum of its proper divisors (9775).

22941869 is an equidigital number, since it uses as much as digits as its factorization.

22941869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774.

The product of its digits is 62208, while the sum is 41.

The square root of 22941869 is about 4789.7671133365. The cubic root of 22941869 is about 284.1469062415.

The spelling of 22941869 in words is "twenty-two million, nine hundred forty-one thousand, eight hundred sixty-nine".

Divisors: 1 3917 5857 22941869