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229734144 = 28361231
BaseRepresentation
bin11011011000101…
…11011100000000
3121000021201000000
431230113130000
5432302443034
634444000000
75456464563
oct1554273400
9530251000
10229734144
11108751732
1264b30000
1338798283
14227224da
151527e599
hexdb17700

229734144 has 126 divisors (see below), whose sum is σ = 688100336. Its totient is φ = 76515840.

The previous prime is 229734101. The next prime is 229734151. The reversal of 229734144 is 441437922.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 229734099 and 229734108.

It is a congruent number.

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 186009 + ... + 187239.

Almost surely, 2229734144 is an apocalyptic number.

229734144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229734144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344050168).

229734144 is an abundant number, since it is smaller than the sum of its proper divisors (458366192).

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

229734144 is an frugal number, since it uses more digits than its factorization.

229734144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265 (or 1236 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 229734144 is about 15156.9833410214. The cubic root of 229734144 is about 612.4564069488.

The spelling of 229734144 in words is "two hundred twenty-nine million, seven hundred thirty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 243 256 288 324 384 432 486 576 648 729 768 864 972 1152 1231 1296 1458 1728 1944 2304 2462 2592 2916 3456 3693 3888 4924 5184 5832 6912 7386 7776 9848 10368 11079 11664 14772 15552 19696 20736 22158 23328 29544 31104 33237 39392 44316 46656 59088 62208 66474 78784 88632 93312 99711 118176 132948 157568 177264 186624 199422 236352 265896 299133 315136 354528 398844 472704 531792 598266 709056 797688 897399 945408 1063584 1196532 1418112 1595376 1794798 2127168 2393064 2836224 3190752 3589596 4254336 4786128 6381504 7179192 8508672 9572256 12763008 14358384 19144512 25526016 28716768 38289024 57433536 76578048 114867072 229734144