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713104721 = 7142771389
BaseRepresentation
bin101010100000010…
…001110101010001
31211200211110202222
4222200101311101
52430023322341
6154432150425
723446201340
oct5240216521
91750743688
10713104721
1133659014a
1217a998415
13b497a174
146a9c9b57
154291044b
hex2a811d51

713104721 has 8 divisors (see below), whose sum is σ = 815559360. Its totient is φ = 610795728.

The previous prime is 713104703. The next prime is 713104723. The reversal of 713104721 is 127401317.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-713104721 is a prime.

It is a super-2 number, since 2×7131047212 = 1017036686224975682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (713104723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25706 + ... + 45683.

It is an arithmetic number, because the mean of its divisors is an integer number (101944920).

Almost surely, 2713104721 is an apocalyptic number.

It is an amenable number.

713104721 is a deficient number, since it is larger than the sum of its proper divisors (102454639).

713104721 is a wasteful number, since it uses less digits than its factorization.

713104721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72823.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 713104721 is about 26704.0206897763. The cubic root of 713104721 is about 893.4106060945.

The spelling of 713104721 in words is "seven hundred thirteen million, one hundred four thousand, seven hundred twenty-one".

Divisors: 1 7 1427 9989 71389 499723 101872103 713104721