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71453846740 = 2253572692337
BaseRepresentation
bin100001010001011111…
…0110010110011010100
320211102202000111200011
41002202332302303110
52132314141043430
652454143530004
75106456450613
oct1024276626324
9224382014604
1071453846740
1128337919701
1211a218b9904
1369796ca3b3
14365bb4387a
151cd309022a
hex10a2fb2cd4

71453846740 has 12 divisors (see below), whose sum is σ = 150053078196. Its totient is φ = 28581538688.

The previous prime is 71453846731. The next prime is 71453846741. The reversal of 71453846740 is 4764835417.

It can be written as a sum of positive squares in 2 ways, for example, as 11535619216 + 59918227524 = 107404^2 + 244782^2 .

It is a super-3 number, since 3×714538467403 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71453846741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786346149 + ... + 1786346188.

It is an arithmetic number, because the mean of its divisors is an integer number (12504423183).

Almost surely, 271453846740 is an apocalyptic number.

It is an amenable number.

71453846740 is an abundant number, since it is smaller than the sum of its proper divisors (78599231456).

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

71453846740 is a wasteful number, since it uses less digits than its factorization.

71453846740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572692346 (or 3572692344 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 71453846740 in words is "seventy-one billion, four hundred fifty-three million, eight hundred forty-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 3572692337 7145384674 14290769348 17863461685 35726923370 71453846740