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71450949294 = 23210159390737
BaseRepresentation
bin100001010001011001…
…1101111011010101110
320211102112120022010100
41002202303233122232
52132312420334134
652454001451530
75106423022344
oct1024263573256
9224375508110
1071450949294
112833621a81a
1211a20940ba6
136978c2462a
14365b5cb994
151cd2bbb999
hex10a2cef6ae

71450949294 has 24 divisors (see below), whose sum is σ = 154826025120. Its totient is φ = 23814577728.

The previous prime is 71450949247. The next prime is 71450949319. The reversal of 71450949294 is 49294905417.

71450949294 is a `hidden beast` number, since 7 + 1 + 4 + 509 + 49 + 2 + 94 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 71450949294.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12507 + ... + 378230.

It is an arithmetic number, because the mean of its divisors is an integer number (6451084380).

Almost surely, 271450949294 is an apocalyptic number.

71450949294 is an abundant number, since it is smaller than the sum of its proper divisors (83375075826).

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

71450949294 is a wasteful number, since it uses less digits than its factorization.

71450949294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400904 (or 400901 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 71450949294 in words is "seventy-one billion, four hundred fifty million, nine hundred forty-nine thousand, two hundred ninety-four".

Divisors: 1 2 3 6 9 18 10159 20318 30477 60954 91431 182862 390737 781474 1172211 2344422 3516633 7033266 3969497183 7938994366 11908491549 23816983098 35725474647 71450949294