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71486514 = 232111792017
BaseRepresentation
bin1000100001011…
…00110000110010
311222111220001200
410100230300302
5121300032024
611032112030
71525424331
oct420546062
9158456050
1071486514
1137396970
121bb35616
1311a6c318
1496cbd18
1564212c9
hex442cc32

71486514 has 48 divisors (see below), whose sum is σ = 169996320. Its totient is φ = 21530880.

The previous prime is 71486509. The next prime is 71486549. The reversal of 71486514 is 41568417.

It is a happy number.

It is a super-2 number, since 2×714865142 = 10220643367744392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34434 + ... + 36450.

It is an arithmetic number, because the mean of its divisors is an integer number (3541590).

Almost surely, 271486514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71486514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84998160).

71486514 is an abundant number, since it is smaller than the sum of its proper divisors (98509806).

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

71486514 is a wasteful number, since it uses less digits than its factorization.

71486514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215 (or 2212 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 71486514 is about 8454.9697811406. The cubic root of 71486514 is about 415.0254283543.

The spelling of 71486514 in words is "seventy-one million, four hundred eighty-six thousand, five hundred fourteen".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 179 198 358 537 1074 1611 1969 2017 3222 3938 4034 5907 6051 11814 12102 17721 18153 22187 35442 36306 44374 66561 133122 199683 361043 399366 722086 1083129 2166258 3249387 3971473 6498774 7942946 11914419 23828838 35743257 71486514