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2780053275 = 352371001821
BaseRepresentation
bin1010010110110100…
…0011111100011011
321011202011100011010
42211231003330123
521143143201100
61135510105003
7125615030406
oct24555037433
97152140133
102780053275
1111a72a419a
1265704b163
13353c6514c
141c5310d3d
151140e9750
hexa5b43f1b

2780053275 has 24 divisors (see below), whose sum is σ = 4720585264. Its totient is φ = 1442620800.

The previous prime is 2780053261. The next prime is 2780053277. The reversal of 2780053275 is 5723500872.

It is not a de Polignac number, because 2780053275 - 29 = 2780052763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2780053277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498136 + ... + 503685.

Almost surely, 22780053275 is an apocalyptic number.

2780053275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2780053275 is a deficient number, since it is larger than the sum of its proper divisors (1940531989).

2780053275 is a wasteful number, since it uses less digits than its factorization.

2780053275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001871 (or 1001866 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 2780053275 is about 52726.2105124197. The cubic root of 2780053275 is about 1406.1048498085.

The spelling of 2780053275 in words is "two billion, seven hundred eighty million, fifty-three thousand, two hundred seventy-five".

Divisors: 1 3 5 15 25 37 75 111 185 555 925 2775 1001821 3005463 5009105 15027315 25045525 37067377 75136575 111202131 185336885 556010655 926684425 2780053275