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71442183792 = 24372381111399
BaseRepresentation
bin100001010001001001…
…0010011011001110000
320211101221001222010010
41002202102103121300
52132303144340132
652453045534520
75106255354060
oct1024222233160
9224357058103
1071442183792
1128331283101
1211a19a14440
136977175945
14365a3893a0
151cd20396cc
hex10a2493670

71442183792 has 160 divisors (see below), whose sum is σ = 220385894400. Its totient is φ = 19498786560.

The previous prime is 71442183781. The next prime is 71442183797. The reversal of 71442183792 is 29738124417.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71442183797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6261709 + ... + 6273107.

It is an arithmetic number, because the mean of its divisors is an integer number (1377411840).

Almost surely, 271442183792 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 71442183792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110192947200).

71442183792 is an abundant number, since it is smaller than the sum of its proper divisors (148943710608).

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

71442183792 is a wasteful number, since it uses less digits than its factorization.

71442183792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12251 (or 12245 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The spelling of 71442183792 in words is "seventy-one billion, four hundred forty-two million, one hundred eighty-three thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 23 24 28 42 46 48 56 69 84 92 112 138 161 168 184 276 322 336 368 483 552 644 811 966 1104 1288 1622 1932 2433 2576 3244 3864 4866 5677 6488 7728 9732 11354 11399 12976 17031 18653 19464 22708 22798 34062 34197 37306 38928 45416 45596 55959 68124 68394 74612 79793 90832 91192 111918 130571 136248 136788 149224 159586 182384 223836 239379 261142 262177 272496 273576 298448 319172 391713 447672 478758 522284 524354 547152 638344 783426 786531 895344 957516 1044568 1048708 1276688 1566852 1573062 1835239 1915032 2089136 2097416 3133704 3146124 3670478 3830064 4194832 5505717 6267408 6292248 7340956 9244589 11011434 12584496 14681912 18489178 22022868 27733767 29363824 36978356 44045736 55467534 64712123 73956712 88091472 110935068 129424246 147913424 194136369 212625547 221870136 258848492 388272738 425251094 443740272 517696984 637876641 776545476 850502188 1035393968 1275753282 1488378829 1553090952 1701004376 2551506564 2976757658 3106181904 3402008752 4465136487 5103013128 5953515316 8930272974 10206026256 11907030632 17860545948 23814061264 35721091896 71442183792