Search a number
-
+
22987442109 = 317450734159
BaseRepresentation
bin10101011010001010…
…001000011110111101
32012100000221001101210
4111122022020132331
5334034241121414
614321004355033
71442436014442
oct253212103675
965300831353
1022987442109
1198268a2545
124556545a79
1322245b3268
141180d7d9c9
158e817de59
hex55a2887bd

22987442109 has 8 divisors (see below), whose sum is σ = 32452859520. Its totient is φ = 14423493056.

The previous prime is 22987442081. The next prime is 22987442129. The reversal of 22987442109 is 90124478922.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22987442109 - 217 = 22987311037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22987442129) 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, 225367029 + ... + 225367130.

It is an arithmetic number, because the mean of its divisors is an integer number (4056607440).

Almost surely, 222987442109 is an apocalyptic number.

It is an amenable number.

22987442109 is a deficient number, since it is larger than the sum of its proper divisors (9465417411).

22987442109 is a wasteful number, since it uses less digits than its factorization.

22987442109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450734179.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 22987442109 in words is "twenty-two billion, nine hundred eighty-seven million, four hundred forty-two thousand, one hundred nine".

Divisors: 1 3 17 51 450734159 1352202477 7662480703 22987442109