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321713041 = 1324747157
BaseRepresentation
bin10011001011001…
…111001110010001
3211102100201022211
4103023033032101
51124324304131
651531232121
710654341616
oct2313171621
9742321284
10321713041
11155664851
128b8a8641
1351860b60
1430a2650d
151d39c5b1
hex132cf391

321713041 has 4 divisors (see below), whose sum is σ = 346460212. Its totient is φ = 296965872.

The previous prime is 321713023. The next prime is 321713047. The reversal of 321713041 is 140317123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140317123 = 769182467.

It can be written as a sum of positive squares in 2 ways, for example, as 23425600 + 298287441 = 4840^2 + 17271^2 .

It is a cyclic number.

It is not a de Polignac number, because 321713041 - 227 = 187495313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321713047) 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, 12373566 + ... + 12373591.

It is an arithmetic number, because the mean of its divisors is an integer number (86615053).

Almost surely, 2321713041 is an apocalyptic number.

It is an amenable number.

321713041 is a deficient number, since it is larger than the sum of its proper divisors (24747171).

321713041 is a wasteful number, since it uses less digits than its factorization.

321713041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24747170.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 321713041 is about 17936.3608627837. The cubic root of 321713041 is about 685.2087317433.

The spelling of 321713041 in words is "three hundred twenty-one million, seven hundred thirteen thousand, forty-one".

Divisors: 1 13 24747157 321713041