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71381033401008 = 24367204111087433
BaseRepresentation
bin10000001110101110110001…
…001000111011101010110000
3100100201221220221121111201010
4100032232301020323222300
533324001324022313013
6411451554414110520
721015052356612102
oct2016566110735260
9310657827544633
1071381033401008
1120820587500911
12800a1577ab440
1330aa283069126
14138ac0910d572
1583bbb79b77c3
hex40ebb123bab0

71381033401008 has 80 divisors (see below), whose sum is σ = 187162598077056. Its totient is φ = 23437378398720.

The previous prime is 71381033401001. The next prime is 71381033401009. The reversal of 71381033401008 is 80010433018317.

It is not an unprimeable number, because it can be changed into a prime (71381033401001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65098060 + ... + 66185492.

Almost surely, 271381033401008 is an apocalyptic number.

It is an amenable number.

71381033401008 is an abundant number, since it is smaller than the sum of its proper divisors (115781564676048).

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

71381033401008 is a wasteful number, since it uses less digits than its factorization.

71381033401008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107922 (or 1107916 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 71381033401008 in words is "seventy-one trillion, three hundred eighty-one billion, thirty-three million, four hundred one thousand, eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 67 134 201 268 402 536 804 1072 1608 3216 20411 40822 61233 81644 122466 163288 244932 326576 489864 979728 1087433 1367537 2174866 2735074 3262299 4102611 4349732 5470148 6524598 8205222 8699464 10940296 13049196 16410444 17398928 21880592 26098392 32820888 52196784 65641776 72858011 145716022 218574033 291432044 437148066 582864088 874296132 1165728176 1748592264 3497184528 22195594963 44391189926 66586784889 88782379852 133173569778 177564759704 266347139556 355129519408 532694279112 1065388558224 1487104862521 2974209725042 4461314587563 5948419450084 8922629175126 11896838900168 17845258350252 23793677800336 35690516700504 71381033401008