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42878514405070 = 258382039629711
BaseRepresentation
bin10011011111111011011101…
…00111101001111011001110
312121211010221101121122010201
421233331232213221323032
521110010144141430240
6231110041221524114
712013604362554631
oct1157755647517316
9177733841548121
1042878514405070
11127317485a5223
12498618787363a
131ac05711c2946
14a8348ca35c18
154e557dd58d9a
hex26ff6e9e9ece

42878514405070 has 32 divisors (see below), whose sum is σ = 78112297589760. Its totient is φ = 16944528865440.

The previous prime is 42878514405053. The next prime is 42878514405079. The reversal of 42878514405070 is 7050441587824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878514405079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67777515 + ... + 68407225.

It is an arithmetic number, because the mean of its divisors is an integer number (2441009299680).

Almost surely, 242878514405070 is an apocalyptic number.

42878514405070 is a deficient number, since it is larger than the sum of its proper divisors (35233783184690).

42878514405070 is a wasteful number, since it uses less digits than its factorization.

42878514405070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711840.

The product of its (nonzero) digits is 10035200, while the sum is 55.

The spelling of 42878514405070 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred fourteen million, four hundred five thousand, seventy".

Divisors: 1 2 5 10 83 166 415 830 82039 164078 410195 629711 820390 1259422 3148555 6297110 6809237 13618474 34046185 52266013 68092370 104532026 261330065 522660130 51660860729 103321721458 258304303645 516608607290 4287851440507 8575702881014 21439257202535 42878514405070