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71571214 = 211131913171
BaseRepresentation
bin1000100010000…
…01011100001110
311222200012020201
410101001130032
5121310234324
611034004114
71526226301
oct421013416
9158605221
1071571214
1137444570
121bb7663a
1311a9ba40
149710b38
15643b444
hex444170e

71571214 has 32 divisors (see below), whose sum is σ = 132773760. Its totient is φ = 28447200.

The previous prime is 71571197. The next prime is 71571251. The reversal of 71571214 is 41217517.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152 + ... + 12019.

It is an arithmetic number, because the mean of its divisors is an integer number (4149180).

Almost surely, 271571214 is an apocalyptic number.

71571214 is a deficient number, since it is larger than the sum of its proper divisors (61202546).

71571214 is a wasteful number, since it uses less digits than its factorization.

71571214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13216.

The product of its digits is 1960, while the sum is 28.

The square root of 71571214 is about 8459.9771867305. The cubic root of 71571214 is about 415.1892764124.

The spelling of 71571214 in words is "seventy-one million, five hundred seventy-one thousand, two hundred fourteen".

Divisors: 1 2 11 13 19 22 26 38 143 209 247 286 418 494 2717 5434 13171 26342 144881 171223 250249 289762 342446 500498 1883453 2752739 3253237 3766906 5505478 6506474 35785607 71571214