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164442948 = 2231937101193
BaseRepresentation
bin10011100110100…
…11001101000100
3102110102120022120
421303103031010
5314044133243
624152325540
74034512335
oct1163231504
9373376276
10164442948
118490746a
12470a38b0
13280b7b27
1417ba828c
15e683c83
hex9cd3344

164442948 has 96 divisors (see below), whose sum is σ = 421088640. Its totient is φ = 49766400.

The previous prime is 164442947. The next prime is 164442973. The reversal of 164442948 is 849244461.

164442948 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (164442947) 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 31 ways as a sum of consecutive naturals, for example, 851940 + ... + 852132.

It is an arithmetic number, because the mean of its divisors is an integer number (4386340).

Almost surely, 2164442948 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 164442948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210544320).

164442948 is an abundant number, since it is smaller than the sum of its proper divisors (256645692).

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

164442948 is a wasteful number, since it uses less digits than its factorization.

164442948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 355 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 164442948 is about 12823.5310269832. The cubic root of 164442948 is about 547.8627224648.

The spelling of 164442948 in words is "one hundred sixty-four million, four hundred forty-two thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 19 37 38 57 74 76 101 111 114 148 193 202 222 228 303 386 404 444 579 606 703 772 1158 1212 1406 1919 2109 2316 2812 3667 3737 3838 4218 5757 7141 7334 7474 7676 8436 11001 11211 11514 14282 14668 14948 19493 21423 22002 22422 23028 28564 38986 42846 44004 44844 58479 71003 77972 85692 116958 135679 142006 213009 233916 271358 284012 370367 407037 426018 542716 721241 740734 814074 852036 1111101 1442482 1481468 1628148 2163723 2222202 2884964 4327446 4444404 8654892 13703579 27407158 41110737 54814316 82221474 164442948