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164052224 = 287432129
BaseRepresentation
bin10011100011100…
…11110100000000
3102102200201100022
421301303310000
5313444132344
624140113012
74031264240
oct1161636400
9372621308
10164052224
118466a956
1246b35768
1327cac02b
1417b05b20
15e6080ee
hex9c73d00

164052224 has 72 divisors (see below), whose sum is σ = 383127360. Its totient is φ = 68640768.

The previous prime is 164052223. The next prime is 164052233. The reversal of 164052224 is 422250461.

It is a junction number, because it is equal to n+sod(n) for n = 164052193 and 164052202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164052221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75992 + ... + 78120.

Almost surely, 2164052224 is an apocalyptic number.

164052224 is a gapful number since it is divisible by the number (14) 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 164052224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191563680).

164052224 is an abundant number, since it is smaller than the sum of its proper divisors (219075136).

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

164052224 is an equidigital number, since it uses as much as digits as its factorization.

164052224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 164052224 is about 12808.2873172021. The cubic root of 164052224 is about 547.4284626756.

The spelling of 164052224 in words is "one hundred sixty-four million, fifty-two thousand, two hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 28 32 43 56 64 86 112 128 172 224 256 301 344 448 602 688 896 1204 1376 1792 2129 2408 2752 4258 4816 5504 8516 9632 11008 14903 17032 19264 29806 34064 38528 59612 68128 77056 91547 119224 136256 183094 238448 272512 366188 476896 545024 640829 732376 953792 1281658 1464752 1907584 2563316 2929504 3815168 5126632 5859008 10253264 11718016 20506528 23436032 41013056 82026112 164052224