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4780993 = 71973467
BaseRepresentation
bin10010001111001111000001
322222220021211
4102033033001
52210442433
6250250121
755431520
oct22171701
98886254
104780993
112776038
121726941
13cb51b9
148c64b7
156468cd
hex48f3c1

4780993 has 8 divisors (see below), whose sum is σ = 5493312. Its totient is φ = 4076016.

The previous prime is 4780973. The next prime is 4781009. The reversal of 4780993 is 3990874.

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

It is a de Polignac number, because none of the positive numbers 2k-4780993 is a prime.

It is a Duffinian number.

4780993 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780903) 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 7 ways as a sum of consecutive naturals, for example, 355 + ... + 3112.

It is an arithmetic number, because the mean of its divisors is an integer number (686664).

Almost surely, 24780993 is an apocalyptic number.

It is an amenable number.

4780993 is a deficient number, since it is larger than the sum of its proper divisors (712319).

4780993 is a wasteful number, since it uses less digits than its factorization.

4780993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 4780993 is about 2186.5481929288. The cubic root of 4780993 is about 168.4635840143.

The spelling of 4780993 in words is "four million, seven hundred eighty thousand, nine hundred ninety-three".

Divisors: 1 7 197 1379 3467 24269 682999 4780993