Search a number
-
+
228968869877 = 11435918314481
BaseRepresentation
bin1101010100111110011…
…0111010111111110101
3210220000020022202020222
43111033212322333311
512222412012314002
6253104205304125
722354030165406
oct3251746727765
9726006282228
10228968869877
1189117a59980
1238461265045
131878cb978b7
14b1215d79ad
155e517bd1a2
hex354f9baff5

228968869877 has 32 divisors (see below), whose sum is σ = 260125240320. Its totient is φ = 199713024000.

The previous prime is 228968869741. The next prime is 228968870041. The reversal of 228968869877 is 778968869822.

It is a cyclic number.

It is not a de Polignac number, because 228968869877 - 212 = 228968865781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228968899877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51095477 + ... + 51099957.

It is an arithmetic number, because the mean of its divisors is an integer number (8128913760).

Almost surely, 2228968869877 is an apocalyptic number.

It is an amenable number.

228968869877 is a deficient number, since it is larger than the sum of its proper divisors (31156370443).

228968869877 is a wasteful number, since it uses less digits than its factorization.

228968869877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6425.

The product of its digits is 2341011456, while the sum is 80.

Subtracting 228968869877 from its reverse (778968869822), we obtain a palindrome (549999999945).

The spelling of 228968869877 in words is "two hundred twenty-eight billion, nine hundred sixty-eight million, eight hundred sixty-nine thousand, eight hundred seventy-seven".

Divisors: 1 11 43 59 473 649 1831 2537 4481 20141 27907 49291 78733 108029 192683 264379 866063 1188319 2119513 2908169 4645247 8204711 11368297 51097717 90251821 125051267 352802573 484077949 3880828303 5324857439 20815351807 228968869877