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2580253220 = 225267748193
BaseRepresentation
bin1001100111001011…
…1000101000100100
320122211012110000002
42121302320220210
520241021100340
61104011440432
7120640535066
oct23162705044
96584173002
102580253220
111104538486
12600156118
1332174ab6c
141a6981736
151017ce715
hex99cb8a24

2580253220 has 24 divisors (see below), whose sum is σ = 5420668344. Its totient is φ = 1031694336.

The previous prime is 2580253177. The next prime is 2580253231. The reversal of 2580253220 is 223520852.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41705764 + 2538547456 = 6458^2 + 50384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29444 + ... + 77636.

It is an arithmetic number, because the mean of its divisors is an integer number (225861181).

Almost surely, 22580253220 is an apocalyptic number.

2580253220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2580253220 is an abundant number, since it is smaller than the sum of its proper divisors (2840415124).

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

2580253220 is a wasteful number, since it uses less digits than its factorization.

2580253220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50879 (or 50877 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2580253220 is about 50796.1929675837. The cubic root of 2580253220 is about 1371.5788393856.

The spelling of 2580253220 in words is "two billion, five hundred eighty million, two hundred fifty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2677 5354 10708 13385 26770 48193 53540 96386 192772 240965 481930 963860 129012661 258025322 516050644 645063305 1290126610 2580253220