Search a number
-
+
229689544 = 23741711409
BaseRepresentation
bin11011011000011…
…00100011001000
3121000012102211011
431230030203020
5432300031134
634443013304
75456220550
oct1554144310
9530172734
10229689544
11108721177
1264b0a234
1338780b96
1422710160
1515271264
hexdb0c8c8

229689544 has 64 divisors (see below), whose sum is σ = 511660800. Its totient is φ = 94617600.

The previous prime is 229689527. The next prime is 229689547. The reversal of 229689544 is 445986922.

It is not an unprimeable number, because it can be changed into a prime (229689547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162312 + ... + 163720.

It is an arithmetic number, because the mean of its divisors is an integer number (7994700).

Almost surely, 2229689544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229689544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255830400).

229689544 is an abundant number, since it is smaller than the sum of its proper divisors (281971256).

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

229689544 is a wasteful number, since it uses less digits than its factorization.

229689544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1530 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 229689544 is about 15155.5120005891. The cubic root of 229689544 is about 612.4167708095.

The spelling of 229689544 in words is "two hundred twenty-nine million, six hundred eighty-nine thousand, five hundred forty-four".

Divisors: 1 2 4 7 8 14 28 41 56 71 82 142 164 284 287 328 497 568 574 994 1148 1409 1988 2296 2818 2911 3976 5636 5822 9863 11272 11644 19726 20377 23288 39452 40754 57769 78904 81508 100039 115538 163016 200078 231076 400156 404383 462152 700273 800312 808766 1400546 1617532 2801092 3235064 4101599 5602184 8203198 16406396 28711193 32812792 57422386 114844772 229689544