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229642848 = 25327191109
BaseRepresentation
bin11011011000000…
…01001001100000
3121000010001202200
431230001021200
5432242032343
634442013200
75455634451
oct1554011140
9530101680
10229642848
1110869a086
1264aa7200
1338765856
14226db128
15152624d3
hexdb01260

229642848 has 72 divisors (see below), whose sum is σ = 654544800. Its totient is φ = 76372224.

The previous prime is 229642841. The next prime is 229642871. The reversal of 229642848 is 848246922.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×2296428482 = 105471675275102208, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229642841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206518 + ... + 207626.

It is an arithmetic number, because the mean of its divisors is an integer number (9090900).

Almost surely, 2229642848 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 229642848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327272400).

229642848 is an abundant number, since it is smaller than the sum of its proper divisors (424901952).

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

229642848 is a wasteful number, since it uses less digits than its factorization.

229642848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1833 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 229642848 is about 15153.9713606698. The cubic root of 229642848 is about 612.3752664508.

The spelling of 229642848 in words is "two hundred twenty-nine million, six hundred forty-two thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 719 1109 1438 2157 2218 2876 3327 4314 4436 5752 6471 6654 8628 8872 9981 11504 12942 13308 17256 17744 19962 23008 25884 26616 34512 35488 39924 51768 53232 69024 79848 103536 106464 159696 207072 319392 797371 1594742 2392113 3189484 4784226 6378968 7176339 9568452 12757936 14352678 19136904 25515872 28705356 38273808 57410712 76547616 114821424 229642848