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164102078 = 2726197283
BaseRepresentation
bin10011100011111…
…11111110111110
3102102210020201202
421301333332332
5314002231303
624141135502
74031562500
oct1161777676
9372706652
10164102078
11846a4358
1246b5a592
1327cc892a
1417b19d70
15e617c88
hex9c7ffbe

164102078 has 48 divisors (see below), whose sum is σ = 295074864. Its totient is φ = 68221440.

The previous prime is 164102077. The next prime is 164102083. The reversal of 164102078 is 870201461.

It is a self number, because there is not a number n which added to its sum of digits gives 164102078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164102077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 579725 + ... + 580007.

It is an arithmetic number, because the mean of its divisors is an integer number (6147393).

Almost surely, 2164102078 is an apocalyptic number.

164102078 is a deficient number, since it is larger than the sum of its proper divisors (130972786).

164102078 is a wasteful number, since it uses less digits than its factorization.

164102078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 164102078 is about 12810.2333312083. The cubic root of 164102078 is about 547.4839099266.

The spelling of 164102078 in words is "one hundred sixty-four million, one hundred two thousand, seventy-eight".

Divisors: 1 2 7 14 49 61 97 98 122 194 283 427 566 679 854 1358 1981 2989 3962 4753 5917 5978 9506 11834 13867 17263 27451 27734 34526 41419 54902 82838 120841 192157 241682 289933 384314 579866 845887 1345099 1674511 1691774 2690198 3349022 11721577 23443154 82051039 164102078