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71425332 = 223211219863
BaseRepresentation
bin1000100000111…
…01110100110100
311222101210010200
410100131310310
5121241102312
611030520500
71525051056
oct420356464
9158353120
1071425332
1137354a00
121bb06130
1311a4a514
1496b38d6
15640d0dc
hex441dd34

71425332 has 108 divisors (see below), whose sum is σ = 209139840. Its totient is φ = 20481120.

The previous prime is 71425331. The next prime is 71425433. The reversal of 71425332 is 23352417.

71425332 = T283 + T284 + ... + T766.

It is a junction number, because it is equal to n+sod(n) for n = 71425296 and 71425305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71425331) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 82333 + ... + 83195.

It is an arithmetic number, because the mean of its divisors is an integer number (1936480).

Almost surely, 271425332 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 71425332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104569920).

71425332 is an abundant number, since it is smaller than the sum of its proper divisors (137714508).

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

71425332 is a wasteful number, since it uses less digits than its factorization.

71425332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 898 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 71425332 is about 8451.3508979334. The cubic root of 71425332 is about 414.9069942061.

Adding to 71425332 its reverse (23352417), we get a palindrome (94777749).

The spelling of 71425332 in words is "seventy-one million, four hundred twenty-five thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 11 12 18 19 22 33 36 38 44 57 66 76 99 114 121 132 171 198 209 228 242 342 363 396 418 484 627 684 726 836 863 1089 1254 1452 1726 1881 2178 2299 2508 2589 3452 3762 4356 4598 5178 6897 7524 7767 9196 9493 10356 13794 15534 16397 18986 20691 27588 28479 31068 32794 37972 41382 49191 56958 65588 82764 85437 98382 104423 113916 147573 170874 180367 196764 208846 295146 313269 341748 360734 417692 541101 590292 626538 721468 939807 1082202 1253076 1623303 1879614 1984037 2164404 3246606 3759228 3968074 5952111 6493212 7936148 11904222 17856333 23808444 35712666 71425332