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4768491 = 371317467
BaseRepresentation
bin10010001100001011101011
322222021010210
4102030023223
52210042431
6250112203
755350210
oct22141353
98867123
104768491
112767702
12171b663
13cac5c0
148c1b07
15642d46
hex48c2eb

4768491 has 16 divisors (see below), whose sum is σ = 7825664. Its totient is φ = 2515104.

The previous prime is 4768481. The next prime is 4768493. The reversal of 4768491 is 1948674.

4768491 = T225 + T226 + ... + T341.

It is a happy number.

It is not a de Polignac number, because 4768491 - 25 = 4768459 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (4768493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8461 + ... + 9006.

It is an arithmetic number, because the mean of its divisors is an integer number (489104).

Almost surely, 24768491 is an apocalyptic number.

4768491 is a deficient number, since it is larger than the sum of its proper divisors (3057173).

4768491 is a wasteful number, since it uses less digits than its factorization.

4768491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17490.

The product of its digits is 48384, while the sum is 39.

The square root of 4768491 is about 2183.6874776396. The cubic root of 4768491 is about 168.3166152291.

The spelling of 4768491 in words is "four million, seven hundred sixty-eight thousand, four hundred ninety-one".

Divisors: 1 3 7 13 21 39 91 273 17467 52401 122269 227071 366807 681213 1589497 4768491