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229845408 = 25313231457
BaseRepresentation
bin11011011001100…
…10100110100000
3121000111100121220
431230302212200
5432320023113
634450215040
75460440142
oct1554624640
9530440556
10229845408
11108818291
1264b84480
1338806b00
1422750c92
15152a2523
hexdb329a0

229845408 has 144 divisors (see below), whose sum is σ = 675876096. Its totient is φ = 68290560.

The previous prime is 229845401. The next prime is 229845419. The reversal of 229845408 is 804548922.

It is a self number, because there is not a number n which added to its sum of digits gives 229845408.

It is not an unprimeable number, because it can be changed into a prime (229845401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502716 + ... + 503172.

It is an arithmetic number, because the mean of its divisors is an integer number (4693584).

Almost surely, 2229845408 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 229845408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337938048).

229845408 is an abundant number, since it is smaller than the sum of its proper divisors (446030688).

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

229845408 is a wasteful number, since it uses less digits than its factorization.

229845408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 229845408 is about 15160.6532840772. The cubic root of 229845408 is about 612.5552652063. Note that the first 3 decimals are identical.

The spelling of 229845408 in words is "two hundred twenty-nine million, eight hundred forty-five thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 31 32 39 48 52 62 78 93 96 104 124 156 169 186 208 248 312 338 372 403 416 457 496 507 624 676 744 806 914 992 1014 1209 1248 1352 1371 1488 1612 1828 2028 2418 2704 2742 2976 3224 3656 4056 4836 5239 5408 5484 5941 6448 7312 8112 9672 10478 10968 11882 12896 14167 14624 15717 16224 17823 19344 20956 21936 23764 28334 31434 35646 38688 41912 42501 43872 47528 56668 62868 71292 77233 83824 85002 95056 113336 125736 142584 154466 167648 170004 184171 190112 226672 231699 251472 285168 308932 340008 368342 453344 463398 502944 552513 570336 617864 680016 736684 926796 1105026 1235728 1360032 1473368 1853592 2210052 2394223 2471456 2946736 3707184 4420104 4788446 5893472 7182669 7414368 8840208 9576892 14365338 17680416 19153784 28730676 38307568 57461352 76615136 114922704 229845408