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71706050 = 252131071031
BaseRepresentation
bin1000100011000…
…10010111000010
311222221001012122
410101202113002
5121324043200
611040524242
71530330353
oct421422702
9158831178
1071706050
11375268a9
1220020682
1311b18220
149747d2a
156466385
hex44625c2

71706050 has 48 divisors (see below), whose sum is σ = 145115712. Its totient is φ = 26203200.

The previous prime is 71706043. The next prime is 71706053. The reversal of 71706050 is 5060717.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (71706053) 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, 69035 + ... + 70065.

It is an arithmetic number, because the mean of its divisors is an integer number (3023244).

Almost surely, 271706050 is an apocalyptic number.

71706050 is an abundant number, since it is smaller than the sum of its proper divisors (73409662).

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

71706050 is a wasteful number, since it uses less digits than its factorization.

71706050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 71706050 is about 8467.9424891765. The cubic root of 71706050 is about 415.4498436573.

Adding to 71706050 its reverse (5060717), we get a palindrome (76766767).

The spelling of 71706050 in words is "seventy-one million, seven hundred six thousand, fifty".

Divisors: 1 2 5 10 13 25 26 50 65 107 130 214 325 535 650 1031 1070 1391 2062 2675 2782 5155 5350 6955 10310 13403 13910 25775 26806 34775 51550 67015 69550 110317 134030 220634 335075 551585 670150 1103170 1434121 2757925 2868242 5515850 7170605 14341210 35853025 71706050