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71555160700 = 225217281149791
BaseRepresentation
bin100001010100100000…
…1010001101001111100
320211200210122210022001
41002221001101221330
52133021110120300
652512203232044
75112126554602
oct1025101215174
9224623583261
1071555160700
112838a028351
1211a4b818624
1369946b0c9a
14366b397872
151cdbe0416a
hex10a9051a7c

71555160700 has 72 divisors (see below), whose sum is σ = 164994689664. Its totient is φ = 26842368000.

The previous prime is 71555160697. The next prime is 71555160701. The reversal of 71555160700 is 706155517.

It is a self number, because there is not a number n which added to its sum of digits gives 71555160700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71555160701) 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, 402805 + ... + 552595.

It is an arithmetic number, because the mean of its divisors is an integer number (2291592912).

Almost surely, 271555160700 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 71555160700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82497344832).

71555160700 is an abundant number, since it is smaller than the sum of its proper divisors (93439528964).

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

71555160700 is a wasteful number, since it uses less digits than its factorization.

71555160700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150103 (or 150096 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 37.

The spelling of 71555160700 in words is "seventy-one billion, five hundred fifty-five million, one hundred sixty thousand, seven hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 170 281 340 425 562 850 1124 1405 1700 2810 4777 5620 7025 9554 14050 19108 23885 28100 47770 95540 119425 149791 238850 299582 477700 599164 748955 1497910 2546447 2995820 3744775 5092894 7489550 10185788 12732235 14979100 25464470 42091271 50928940 63661175 84182542 127322350 168365084 210456355 254644700 420912710 715551607 841825420 1052281775 1431103214 2104563550 2862206428 3577758035 4209127100 7155516070 14311032140 17888790175 35777580350 71555160700