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71325492 = 22373753433
BaseRepresentation
bin1000100000001…
…01011100110100
311222012201011220
410100011130310
5121224403432
611024430340
71524154020
oct420053464
9158181156
1071325492
1137296997
121ba783b0
1311a13c44
149689380
1563dd72c
hex4405734

71325492 has 96 divisors (see below), whose sum is σ = 199487232. Its totient is φ = 19408896.

The previous prime is 71325491. The next prime is 71325509. The reversal of 71325492 is 29452317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71325491) 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, 164508 + ... + 164940.

It is an arithmetic number, because the mean of its divisors is an integer number (2077992).

Almost surely, 271325492 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 71325492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99743616).

71325492 is an abundant number, since it is smaller than the sum of its proper divisors (128161740).

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

71325492 is a wasteful number, since it uses less digits than its factorization.

71325492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 535 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 71325492 is about 8445.4420843435. The cubic root of 71325492 is about 414.7135818251.

It can be divided in two parts, 71325 and 492, that added together give a palindrome (71817).

The spelling of 71325492 in words is "seventy-one million, three hundred twenty-five thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 53 74 84 106 111 148 159 212 222 259 318 371 433 444 518 636 742 777 866 1036 1113 1299 1484 1554 1732 1961 2226 2598 3031 3108 3922 4452 5196 5883 6062 7844 9093 11766 12124 13727 16021 18186 22949 23532 27454 32042 36372 41181 45898 48063 54908 64084 68847 82362 91796 96126 112147 137694 160643 164724 192252 224294 275388 321286 336441 448588 481929 642572 672882 849113 963858 1345764 1698226 1927716 2547339 3396452 5094678 5943791 10189356 11887582 17831373 23775164 35662746 71325492