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71675130 = 23523109953
BaseRepresentation
bin1000100010110…
…10110011111010
311222212110210110
410101122303322
5121322101010
611040125150
71530141252
oct421326372
9158773713
1071675130
113750564a
12200067b6
1311b07127
14973a962
15645c120
hex445acfa

71675130 has 64 divisors (see below), whose sum is σ = 181336320. Its totient is φ = 18095616.

The previous prime is 71675129. The next prime is 71675159. The reversal of 71675130 is 3157617.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74734 + ... + 75686.

It is an arithmetic number, because the mean of its divisors is an integer number (2833380).

Almost surely, 271675130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71675130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90668160).

71675130 is an abundant number, since it is smaller than the sum of its proper divisors (109661190).

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

71675130 is a wasteful number, since it uses less digits than its factorization.

71675130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 71675130 is about 8466.1165831803. The cubic root of 71675130 is about 415.3901204029.

The spelling of 71675130 in words is "seventy-one million, six hundred seventy-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 109 115 138 218 230 327 345 545 654 690 953 1090 1635 1906 2507 2859 3270 4765 5014 5718 7521 9530 12535 14295 15042 21919 25070 28590 37605 43838 65757 75210 103877 109595 131514 207754 219190 311631 328785 519385 623262 657570 1038770 1558155 2389171 3116310 4778342 7167513 11945855 14335026 23891710 35837565 71675130