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4907820 = 2235157521
BaseRepresentation
bin10010101110001100101100
3100020100021010
4102232030230
52224022240
6253105220
756500341
oct22561454
910210233
104907820
112852355
121788210
13102ab48
1491a7c8
1566e280
hex4ae32c

4907820 has 48 divisors (see below), whose sum is σ = 13855968. Its totient is φ = 1297920.

The previous prime is 4907813. The next prime is 4907821. The reversal of 4907820 is 287094.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4907821) 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 15 ways as a sum of consecutive naturals, for example, 9160 + ... + 9680.

It is an arithmetic number, because the mean of its divisors is an integer number (288666).

Almost surely, 24907820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4907820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6927984).

4907820 is an abundant number, since it is smaller than the sum of its proper divisors (8948148).

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

4907820 is a wasteful number, since it uses less digits than its factorization.

4907820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 4907820 is about 2215.3600158891. The cubic root of 4907820 is about 169.9402327385.

The spelling of 4907820 in words is "four million, nine hundred seven thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 157 314 471 521 628 785 942 1042 1563 1570 1884 2084 2355 2605 3126 3140 4710 5210 6252 7815 9420 10420 15630 31260 81797 163594 245391 327188 408985 490782 817970 981564 1226955 1635940 2453910 4907820