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93828109 = 234079483
BaseRepresentation
bin1011001011110…
…11010000001101
320112112221222011
411211323100031
5143004444414
613151021221
72216345224
oct545732015
9215487864
1093828109
1148a664a1
122750a811
13165924bb
14c665cbb
158385dc4
hex597b40d

93828109 has 4 divisors (see below), whose sum is σ = 97907616. Its totient is φ = 89748604.

The previous prime is 93828043. The next prime is 93828157. The reversal of 93828109 is 90182839.

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 93828109 - 213 = 93819917 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93828169) 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, 2039719 + ... + 2039764.

It is an arithmetic number, because the mean of its divisors is an integer number (24476904).

Almost surely, 293828109 is an apocalyptic number.

It is an amenable number.

93828109 is a deficient number, since it is larger than the sum of its proper divisors (4079507).

93828109 is a wasteful number, since it uses less digits than its factorization.

93828109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079506.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 93828109 is about 9686.4910571373. The cubic root of 93828109 is about 454.4062762727.

The spelling of 93828109 in words is "ninety-three million, eight hundred twenty-eight thousand, one hundred nine".

Divisors: 1 23 4079483 93828109