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163957044 = 223175091579
BaseRepresentation
bin10011100010111…
…00100100110100
3102102111212210010
421301130210310
5313433111134
624134100220
74030416606
oct1161344464
9372455703
10163957044
1184605399
1246aaa670
1327c77904
1417abd176
15e5d9ce9
hex9c5c934

163957044 has 48 divisors (see below), whose sum is σ = 406123200. Its totient is φ = 51303936.

The previous prime is 163957043. The next prime is 163957069. The reversal of 163957044 is 440759361.

It is a junction number, because it is equal to n+sod(n) for n = 163956993 and 163957011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163957043) 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 15 ways as a sum of consecutive naturals, for example, 103047 + ... + 104625.

It is an arithmetic number, because the mean of its divisors is an integer number (8460900).

Almost surely, 2163957044 is an apocalyptic number.

It is an amenable number.

163957044 is an abundant number, since it is smaller than the sum of its proper divisors (242166156).

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

163957044 is a wasteful number, since it uses less digits than its factorization.

163957044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 163957044 is about 12804.5712149997. The cubic root of 163957044 is about 547.3225729784.

The spelling of 163957044 in words is "one hundred sixty-three million, nine hundred fifty-seven thousand, forty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 509 1018 1527 1579 2036 3054 3158 4737 6108 6316 8653 9474 17306 18948 25959 26843 34612 51918 53686 80529 103836 107372 161058 322116 803711 1607422 2411133 3214844 4822266 9644532 13663087 27326174 40989261 54652348 81978522 163957044