Search a number
-
+
28830623244 = 22314087170551
BaseRepresentation
bin11010110110011100…
…000110011000001100
32202102020220102000220
4122312130012120030
5433021114420434
621124500151340
72040310153113
oct326634063014
982366812026
1028830623244
1111255153a65
125707398550
1329460334a7
14157700ac7a
15b3b13bd49
hex6b670660c

28830623244 has 24 divisors (see below), whose sum is σ = 67276624128. Its totient is φ = 9609469200.

The previous prime is 28830623231. The next prime is 28830623249. The reversal of 28830623244 is 44232603882.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28830623196 and 28830623205.

It is not an unprimeable number, because it can be changed into a prime (28830623249) 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, 83769 + ... + 254319.

It is an arithmetic number, because the mean of its divisors is an integer number (2803192672).

Almost surely, 228830623244 is an apocalyptic number.

It is an amenable number.

28830623244 is an abundant number, since it is smaller than the sum of its proper divisors (38446000884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28830623244 is a wasteful number, since it uses less digits than its factorization.

28830623244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184645 (or 184643 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 42.

The spelling of 28830623244 in words is "twenty-eight billion, eight hundred thirty million, six hundred twenty-three thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 14087 28174 42261 56348 84522 169044 170551 341102 511653 682204 1023306 2046612 2402551937 4805103874 7207655811 9610207748 14415311622 28830623244