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82473901 = 697111831
BaseRepresentation
bin1001110101001…
…11001110101101
312202012002220221
410322213032231
5132103131101
612103411341
72021005456
oct472471655
9182162827
1082473901
1142610954
1223753b51
1314118433
14ad4c12d
157391aa1
hex4ea73ad

82473901 has 4 divisors (see below), whose sum is σ = 82492704. Its totient is φ = 82455100.

The previous prime is 82473893. The next prime is 82473913. The reversal of 82473901 is 10937428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82473901 - 23 = 82473893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82473931) 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, 1056 + ... + 12886.

It is an arithmetic number, because the mean of its divisors is an integer number (20623176).

Almost surely, 282473901 is an apocalyptic number.

It is an amenable number.

82473901 is a deficient number, since it is larger than the sum of its proper divisors (18803).

82473901 is a wasteful number, since it uses less digits than its factorization.

82473901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18802.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 82473901 is about 9081.5142459834. The cubic root of 82473901 is about 435.2834740136.

The spelling of 82473901 in words is "eighty-two million, four hundred seventy-three thousand, nine hundred one".

Divisors: 1 6971 11831 82473901