[go: up one dir, main page]

Search a number
-
+
4420780 = 2257213347
BaseRepresentation
bin10000110111010010101100
322022121011121
4100313102230
52112431110
6234430324
752401400
oct20672254
98277147
104420780
11254a441
1215923a4
13bba260
14831100
155c4cda
hex4374ac

4420780 has 72 divisors (see below), whose sum is σ = 11663568. Its totient is φ = 1395072.

The previous prime is 4420777. The next prime is 4420813. The reversal of 4420780 is 870244.

It is a nialpdrome in base 14.

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 23 ways as a sum of consecutive naturals, for example, 12567 + ... + 12913.

It is an arithmetic number, because the mean of its divisors is an integer number (161994).

Almost surely, 24420780 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 4420780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5831784).

4420780 is an abundant number, since it is smaller than the sum of its proper divisors (7242788).

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

4420780 is a wasteful number, since it uses less digits than its factorization.

4420780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 4420780 is about 2102.5651000623. The cubic root of 4420780 is about 164.1218111481.

The spelling of 4420780 in words is "four million, four hundred twenty thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 49 52 65 70 91 98 130 140 182 196 245 260 347 364 455 490 637 694 910 980 1274 1388 1735 1820 2429 2548 3185 3470 4511 4858 6370 6940 9022 9716 12145 12740 17003 18044 22555 24290 31577 34006 45110 48580 63154 68012 85015 90220 126308 157885 170030 221039 315770 340060 442078 631540 884156 1105195 2210390 4420780