Search a number
-
+
2304351989 = 17585123167
BaseRepresentation
bin1000100101011001…
…1001111011110101
312221121001012122222
42021112121323311
514204403230424
61020354132125
7111050445242
oct21126317365
95847035588
102304351989
11a82823835
12543881045
132a9539cb4
1417c0825c9
15d7480e5e
hex89599ef5

2304351989 has 8 divisors (see below), whose sum is σ = 2440424448. Its totient is φ = 2168337600.

The previous prime is 2304351979. The next prime is 2304352003. The reversal of 2304351989 is 9891534032.

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 2304351989 - 28 = 2304351733 is a prime.

It is a super-2 number, since 2×23043519892 = 10620076178416512242, 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 (2304351949) 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, 87884 + ... + 111050.

It is an arithmetic number, because the mean of its divisors is an integer number (305053056).

Almost surely, 22304351989 is an apocalyptic number.

It is an amenable number.

2304351989 is a deficient number, since it is larger than the sum of its proper divisors (136072459).

2304351989 is a wasteful number, since it uses less digits than its factorization.

2304351989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29035.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 2304351989 is about 48003.6664120565. Note that the first 3 decimals coincide. The cubic root of 2304351989 is about 1320.8381555121.

The spelling of 2304351989 in words is "two billion, three hundred four million, three hundred fifty-one thousand, nine hundred eighty-nine".

Divisors: 1 17 5851 23167 99467 393839 135550117 2304351989