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4780997 = 13616029
BaseRepresentation
bin10010001111001111000101
322222220021222
4102033033011
52210442442
6250250125
755431524
oct22171705
98886258
104780997
112776041
121726945
13cb51c0
148c64bb
156468d2
hex48f3c5

4780997 has 8 divisors (see below), whose sum is σ = 5234040. Its totient is φ = 4340160.

The previous prime is 4780973. The next prime is 4781009. The reversal of 4780997 is 7990874.

It can be written as a sum of positive squares in 4 ways, for example, as 119716 + 4661281 = 346^2 + 2159^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4780997 - 26 = 4780933 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 (4780957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2222 + ... + 3807.

It is an arithmetic number, because the mean of its divisors is an integer number (654255).

Almost surely, 24780997 is an apocalyptic number.

It is an amenable number.

4780997 is a deficient number, since it is larger than the sum of its proper divisors (453043).

4780997 is a wasteful number, since it uses less digits than its factorization.

4780997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 4780997 is about 2186.5491076123. The cubic root of 4780997 is about 168.4636309958.

The spelling of 4780997 in words is "four million, seven hundred eighty thousand, nine hundred ninety-seven".

Divisors: 1 13 61 793 6029 78377 367769 4780997