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2780553030 = 235234029787
BaseRepresentation
bin1010010110111011…
…1101111101000110
321011210002201200120
42211232331331012
521143310144110
61135524522410
7125622211413
oct24556757506
97153081616
102780553030
1111a7605712
12657250406
133540ab768
141c540110a
15114197870
hexa5bbdf46

2780553030 has 32 divisors (see below), whose sum is σ = 6963473664. Its totient is φ = 709242336.

The previous prime is 2780553011. The next prime is 2780553059. The reversal of 2780553030 is 303550872.

It is a junction number, because it is equal to n+sod(n) for n = 2780552982 and 2780553000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2014204 + ... + 2015583.

It is an arithmetic number, because the mean of its divisors is an integer number (217608552).

Almost surely, 22780553030 is an apocalyptic number.

2780553030 is an abundant number, since it is smaller than the sum of its proper divisors (4182920634).

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

2780553030 is a wasteful number, since it uses less digits than its factorization.

2780553030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029820.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 2780553030 is about 52730.9494509629. The cubic root of 2780553030 is about 1406.1891006911.

The spelling of 2780553030 in words is "two billion, seven hundred eighty million, five hundred fifty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 4029787 8059574 12089361 20148935 24178722 40297870 60446805 92685101 120893610 185370202 278055303 463425505 556110606 926851010 1390276515 2780553030