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4907920 = 245311979
BaseRepresentation
bin10010101110001110010000
3100020100101211
4102232032100
52224023140
6253105504
756500543
oct22561620
910210354
104907920
112852436
121788294
13102abc4
1491a85a
1566e2ea
hex4ae390

4907920 has 40 divisors (see below), whose sum is σ = 11784960. Its totient is φ = 1898880.

The previous prime is 4907897. The next prime is 4907921. The reversal of 4907920 is 297094.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4907921) 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, 1491 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (294624).

Almost surely, 24907920 is an apocalyptic number.

4907920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4907920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5892480).

4907920 is an abundant number, since it is smaller than the sum of its proper divisors (6877040).

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

4907920 is a wasteful number, since it uses less digits than its factorization.

4907920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 4907920 is about 2215.3825854692. The cubic root of 4907920 is about 169.9413869447.

The spelling of 4907920 in words is "four million, nine hundred seven thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 1979 2480 3958 7916 9895 15832 19790 31664 39580 61349 79160 122698 158320 245396 306745 490792 613490 981584 1226980 2453960 4907920