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4975648 = 25612549
BaseRepresentation
bin10010111110110000100000
3100100210022021
4102332300200
52233210043
6254351224
760202156
oct22766040
910323267
104975648
112899307
1217bb514
131052992
149373d6
156843ed
hex4bec20

4975648 has 24 divisors (see below), whose sum is σ = 9960300. Its totient is φ = 2446080.

The previous prime is 4975643. The next prime is 4975651. The reversal of 4975648 is 8465794.

It can be written as a sum of positive squares in 2 ways, for example, as 4963984 + 11664 = 2228^2 + 108^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4975643) 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, 678 + ... + 3226.

Almost surely, 24975648 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 4975648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4980150).

4975648 is an abundant number, since it is smaller than the sum of its proper divisors (4984652).

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

4975648 is a wasteful number, since it uses less digits than its factorization.

4975648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620 (or 2612 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 4975648 is about 2230.6160584018. The cubic root of 4975648 is about 170.7195338604.

The spelling of 4975648 in words is "four million, nine hundred seventy-five thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 32 61 122 244 488 976 1952 2549 5098 10196 20392 40784 81568 155489 310978 621956 1243912 2487824 4975648