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71032425 = 3523532683
BaseRepresentation
bin1000011101111…
…01111001101001
311221122211011120
410032331321221
5121141014200
611014245453
71521523422
oct416757151
9157584146
1071032425
1137106792
121b956889
1311940729
149610649
1563819a0
hex43bde69

71032425 has 24 divisors (see below), whose sum is σ = 117816864. Its totient is φ = 37762560.

The previous prime is 71032417. The next prime is 71032427. The reversal of 71032425 is 52423017.

It is not a de Polignac number, because 71032425 - 23 = 71032417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71032395 and 71032404.

It is not an unprimeable number, because it can be changed into a prime (71032427) 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, 25134 + ... + 27816.

It is an arithmetic number, because the mean of its divisors is an integer number (4909036).

Almost surely, 271032425 is an apocalyptic number.

71032425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71032425 is a deficient number, since it is larger than the sum of its proper divisors (46784439).

71032425 is a wasteful number, since it uses less digits than its factorization.

71032425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049 (or 3044 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 71032425 is about 8428.0736233139. The cubic root of 71032425 is about 414.1448010368.

The spelling of 71032425 in words is "seventy-one million, thirty-two thousand, four hundred twenty-five".

Divisors: 1 3 5 15 25 75 353 1059 1765 2683 5295 8049 8825 13415 26475 40245 67075 201225 947099 2841297 4735495 14206485 23677475 71032425