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71575014 = 23719257349
BaseRepresentation
bin1000100010000…
…10010111100110
311222200101110110
410101002113212
5121310400024
611034033450
71526243340
oct421022746
9158611413
1071575014
1137447405
121bb78886
1311aa06a4
149712290
15643c629
hex44425e6

71575014 has 64 divisors (see below), whose sum is σ = 173376000. Its totient is φ = 19243008.

The previous prime is 71574989. The next prime is 71575043. The reversal of 71575014 is 41057517.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204912 + ... + 205260.

It is an arithmetic number, because the mean of its divisors is an integer number (2709000).

Almost surely, 271575014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71575014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86688000).

71575014 is an abundant number, since it is smaller than the sum of its proper divisors (101800986).

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

71575014 is a wasteful number, since it uses less digits than its factorization.

71575014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 71575014 is about 8460.2017706435. The cubic root of 71575014 is about 415.1966242983.

The spelling of 71575014 in words is "seventy-one million, five hundred seventy-five thousand, fourteen".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 257 266 349 399 514 698 771 798 1047 1542 1799 2094 2443 3598 4883 4886 5397 6631 7329 9766 10794 13262 14649 14658 19893 29298 34181 39786 46417 68362 89693 92834 102543 139251 179386 205086 269079 278502 538158 627851 1255702 1704167 1883553 3408334 3767106 5112501 10225002 11929169 23858338 35787507 71575014