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4784990 = 257174021
BaseRepresentation
bin10010010000001101011110
3100000002202212
4102100031132
52211104430
6250320422
755446260
oct22201536
910002685
104784990
112779041
121729112
13cb6c72
148c7b30
15647b95
hex49035e

4784990 has 32 divisors (see below), whose sum is σ = 10425024. Its totient is φ = 1543680.

The previous prime is 4784963. The next prime is 4785031. The reversal of 4784990 is 994874.

It is a super-2 number, since 2×47849902 = 45792258600200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821 + ... + 3200.

It is an arithmetic number, because the mean of its divisors is an integer number (325782).

Almost surely, 24784990 is an apocalyptic number.

4784990 is an abundant number, since it is smaller than the sum of its proper divisors (5640034).

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

4784990 is a wasteful number, since it uses less digits than its factorization.

4784990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 4784990 is about 2187.4619996699. The cubic root of 4784990 is about 168.5105171785.

The spelling of 4784990 in words is "four million, seven hundred eighty-four thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 4021 8042 20105 28147 40210 56294 68357 136714 140735 281470 341785 478499 683570 956998 2392495 4784990