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4780917220 = 225239045861
BaseRepresentation
bin1000111001111011…
…10000000111100100
3110100012010202111011
410130331300013210
534242403322340
62110223352004
7226322061112
oct43475600744
913305122434
104780917220
112033780962
12b15152604
135b2652801
14334d52ab2
151ceacd0ea
hex11cf701e4

4780917220 has 12 divisors (see below), whose sum is σ = 10039926204. Its totient is φ = 1912366880.

The previous prime is 4780917209. The next prime is 4780917227. The reversal of 4780917220 is 227190874.

It can be written as a sum of positive squares in 2 ways, for example, as 2319963556 + 2460953664 = 48166^2 + 49608^2 .

It is not an unprimeable number, because it can be changed into a prime (4780917227) 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, 119522911 + ... + 119522950.

It is an arithmetic number, because the mean of its divisors is an integer number (836660517).

Almost surely, 24780917220 is an apocalyptic number.

It is an amenable number.

4780917220 is an abundant number, since it is smaller than the sum of its proper divisors (5259008984).

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

4780917220 is a wasteful number, since it uses less digits than its factorization.

4780917220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239045870 (or 239045868 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 4780917220 is about 69144.1770505659. The cubic root of 4780917220 is about 1684.6269394555.

The spelling of 4780917220 in words is "four billion, seven hundred eighty million, nine hundred seventeen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 239045861 478091722 956183444 1195229305 2390458610 4780917220