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4951280 = 245591049
BaseRepresentation
bin10010111000110011110000
3100022112212202
4102320303300
52231420110
6254042332
760041135
oct22706360
910275782
104951280
112881a74
1217a93a8
131044869
1492c58c
1567c0a5
hex4b8cf0

4951280 has 40 divisors (see below), whose sum is σ = 11718000. Its totient is φ = 1945088.

The previous prime is 4951277. The next prime is 4951333. The reversal of 4951280 is 821594.

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

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4196 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (292950).

Almost surely, 24951280 is an apocalyptic number.

4951280 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 4951280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5859000).

4951280 is an abundant number, since it is smaller than the sum of its proper divisors (6766720).

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

4951280 is a wasteful number, since it uses less digits than its factorization.

4951280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 4951280 is about 2225.1471861430. The cubic root of 4951280 is about 170.4403807112.

The spelling of 4951280 in words is "four million, nine hundred fifty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 59 80 118 236 295 472 590 944 1049 1180 2098 2360 4196 4720 5245 8392 10490 16784 20980 41960 61891 83920 123782 247564 309455 495128 618910 990256 1237820 2475640 4951280