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71450352 = 24321134391
BaseRepresentation
bin1000100001000…
…11111011110000
311222110001110100
410100203323300
5121242402402
611031232400
71525214031
oct420437360
9158401410
1071450352
1137371786
121bb18700
1311a58a1c
1496bca88
15641571c
hex4423ef0

71450352 has 60 divisors (see below), whose sum is σ = 201777264. Its totient is φ = 23600640.

The previous prime is 71450339. The next prime is 71450383. The reversal of 71450352 is 25305417.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14077 + ... + 18467.

Almost surely, 271450352 is an apocalyptic number.

71450352 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71450352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100888632).

71450352 is an abundant number, since it is smaller than the sum of its proper divisors (130326912).

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

71450352 is a wasteful number, since it uses less digits than its factorization.

71450352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518 (or 4509 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 71450352 is about 8452.8310050539. The cubic root of 71450352 is about 414.9554352881.

Adding to 71450352 its reverse (25305417), we get a palindrome (96755769).

The spelling of 71450352 in words is "seventy-one million, four hundred fifty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 113 144 226 339 452 678 904 1017 1356 1808 2034 2712 4068 4391 5424 8136 8782 13173 16272 17564 26346 35128 39519 52692 70256 79038 105384 158076 210768 316152 496183 632304 992366 1488549 1984732 2977098 3969464 4465647 5954196 7938928 8931294 11908392 17862588 23816784 35725176 71450352