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71670676 = 22711474951
BaseRepresentation
bin1000100010110…
…01101110010100
311222212020200111
410101121232110
5121321430201
611040052404
71530122260
oct421315624
9158766614
1071670676
1137502270
1220004104
1311b050ac
1497390a0
15645ab51
hex4459b94

71670676 has 48 divisors (see below), whose sum is σ = 159731712. Its totient is φ = 27324000.

The previous prime is 71670673. The next prime is 71670689. The reversal of 71670676 is 67607617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71670673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12001 + ... + 16951.

It is an arithmetic number, because the mean of its divisors is an integer number (3327744).

Almost surely, 271670676 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 71670676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79865856).

71670676 is an abundant number, since it is smaller than the sum of its proper divisors (88061036).

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

71670676 is a wasteful number, since it uses less digits than its factorization.

71670676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 71670676 is about 8465.8535305071. The cubic root of 71670676 is about 415.3815159032.

The spelling of 71670676 in words is "seventy-one million, six hundred seventy thousand, six hundred seventy-six".

Divisors: 1 2 4 7 11 14 22 28 44 47 77 94 154 188 308 329 517 658 1034 1316 2068 3619 4951 7238 9902 14476 19804 34657 54461 69314 108922 138628 217844 232697 381227 465394 762454 930788 1524908 1628879 2559667 3257758 5119334 6515516 10238668 17917669 35835338 71670676