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121893283070 = 2513275795279
BaseRepresentation
bin111000110000101100…
…1111110010011111110
3102122121221201100121122
41301201121332103332
53444114140024240
6131555204030542
711543425545056
oct1614131762376
9378557640548
10121893283070
1147770642779
121b759992452
13b657508800
145c84982566
1532862d84b5
hex1c6167e4fe

121893283070 has 48 divisors (see below), whose sum is σ = 237900058560. Its totient is φ = 44946824832.

The previous prime is 121893283067. The next prime is 121893283081. The reversal of 121893283070 is 70382398121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1231691 + ... + 1326969.

It is an arithmetic number, because the mean of its divisors is an integer number (4956251220).

Almost surely, 2121893283070 is an apocalyptic number.

121893283070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121893283070 is a deficient number, since it is larger than the sum of its proper divisors (116006775490).

121893283070 is a wasteful number, since it uses less digits than its factorization.

121893283070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96069 (or 96056 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 121893283070 in words is "one hundred twenty-one billion, eight hundred ninety-three million, two hundred eighty-three thousand, seventy".

Divisors: 1 2 5 10 13 26 65 130 169 338 757 845 1514 1690 3785 7570 9841 19682 49205 95279 98410 127933 190558 255866 476395 639665 952790 1238627 1279330 2477254 6193135 12386270 16102151 32204302 72126203 80510755 144252406 161021510 360631015 721262030 937640639 1875281278 4688203195 9376406390 12189328307 24378656614 60946641535 121893283070