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4777940 = 225238897
BaseRepresentation
bin10010001110011111010100
322222202002202
4102032133110
52210343230
6250224032
755416566
oct22163724
98882082
104777940
112773812
121725018
13cb39ab
148c5336
15645a45
hex48e7d4

4777940 has 12 divisors (see below), whose sum is σ = 10033716. Its totient is φ = 1911168.

The previous prime is 4777939. The next prime is 4777943. The reversal of 4777940 is 497774.

It can be written as a sum of positive squares in 2 ways, for example, as 2829124 + 1948816 = 1682^2 + 1396^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4777894 and 4777903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4777943) 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, 119429 + ... + 119468.

It is an arithmetic number, because the mean of its divisors is an integer number (836143).

Almost surely, 24777940 is an apocalyptic number.

It is an amenable number.

4777940 is an abundant number, since it is smaller than the sum of its proper divisors (5255776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4777940 is a wasteful number, since it uses less digits than its factorization.

4777940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238906 (or 238904 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 4777940 is about 2185.8499491045. The cubic root of 4777940 is about 168.4277177667.

The spelling of 4777940 in words is "four million, seven hundred seventy-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 238897 477794 955588 1194485 2388970 4777940