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71471268 = 22331160161
BaseRepresentation
bin1000100001010…
…01000010100100
311222111010011000
410100221002210
5121244040033
611031513300
71525332021
oct420510244
9158433130
1071471268
1137386470
121bb28830
1311a653bb
1496c6548
15641ba13
hex44290a4

71471268 has 48 divisors (see below), whose sum is σ = 202144320. Its totient is φ = 21657600.

The previous prime is 71471237. The next prime is 71471269. The reversal of 71471268 is 86217417.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (71471269) 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, 28893 + ... + 31268.

It is an arithmetic number, because the mean of its divisors is an integer number (4211340).

Almost surely, 271471268 is an apocalyptic number.

It is an amenable number.

71471268 is an abundant number, since it is smaller than the sum of its proper divisors (130673052).

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

71471268 is a wasteful number, since it uses less digits than its factorization.

71471268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60185 (or 60177 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 71471268 is about 8454.0681331534. The cubic root of 71471268 is about 414.9959219612.

The spelling of 71471268 in words is "seventy-one million, four hundred seventy-one thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 297 396 594 1188 60161 120322 180483 240644 360966 541449 661771 721932 1082898 1323542 1624347 1985313 2165796 2647084 3248694 3970626 5955939 6497388 7941252 11911878 17867817 23823756 35735634 71471268