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2869530920 = 23571738273
BaseRepresentation
bin1010101100001001…
…1001000100101000
321101222112021101222
42223002121010220
521334044442140
61152424001212
7131052416234
oct25302310450
97358467358
102869530920
111242859063
12681000208
133696633b9
141d31635c4
1511bdc15b5
hexab099128

2869530920 has 16 divisors (see below), whose sum is σ = 6456444660. Its totient is φ = 1147812352.

The previous prime is 2869530907. The next prime is 2869530931. The reversal of 2869530920 is 290359682.

It can be written as a sum of positive squares in 2 ways, for example, as 2864176324 + 5354596 = 53518^2 + 2314^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35869097 + ... + 35869176.

Almost surely, 22869530920 is an apocalyptic number.

2869530920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2869530920 is an abundant number, since it is smaller than the sum of its proper divisors (3586913740).

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

2869530920 is a wasteful number, since it uses less digits than its factorization.

2869530920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71738284 (or 71738280 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 2869530920 is about 53568.0027628434. The cubic root of 2869530920 is about 1421.0312749246.

The spelling of 2869530920 in words is "two billion, eight hundred sixty-nine million, five hundred thirty thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 71738273 143476546 286953092 358691365 573906184 717382730 1434765460 2869530920