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71074892 = 22721783257
BaseRepresentation
bin1000011110010…
…00010001001100
311221201222102102
410033020101030
5121143344032
611015214232
71522061300
oct417102114
9157658372
1071074892
1137135689
121b977378
1311956b65
149621d00
15638e362
hex43c844c

71074892 has 72 divisors (see below), whose sum is σ = 155648304. Its totient is φ = 28213248.

The previous prime is 71074889. The next prime is 71074901. The reversal of 71074892 is 29847017.

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, 276428 + ... + 276684.

It is an arithmetic number, because the mean of its divisors is an integer number (2161782).

Almost surely, 271074892 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 71074892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77824152).

71074892 is an abundant number, since it is smaller than the sum of its proper divisors (84573412).

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

71074892 is a wasteful number, since it uses less digits than its factorization.

71074892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 71074892 is about 8430.5926244838. The cubic root of 71074892 is about 414.2273172657.

The spelling of 71074892 in words is "seventy-one million, seventy-four thousand, eight hundred ninety-two".

Divisors: 1 2 4 7 14 17 28 34 49 68 83 98 119 166 196 238 257 332 476 514 581 833 1028 1162 1411 1666 1799 2324 2822 3332 3598 4067 4369 5644 7196 8134 8738 9877 12593 16268 17476 19754 21331 25186 30583 39508 42662 50372 61166 69139 85324 122332 138278 149317 214081 276556 298634 362627 428162 597268 725254 856324 1045219 1450508 2090438 2538389 4180876 5076778 10153556 17768723 35537446 71074892