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2770431340 = 2251271090721
BaseRepresentation
bin1010010100100001…
…0110110101101100
321011002001111100011
42211020112311230
521133212300330
61134523543004
7125440164205
oct24510266554
97132044304
102770431340
1111a1922086
1265398aa64
13351c766b1
141c3d285ac
1511334882a
hexa5216d6c

2770431340 has 24 divisors (see below), whose sum is σ = 5863721472. Its totient is φ = 1099445760.

The previous prime is 2770431331. The next prime is 2770431383. The reversal of 2770431340 is 431340772.

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, 542821 + ... + 547900.

It is an arithmetic number, because the mean of its divisors is an integer number (244321728).

Almost surely, 22770431340 is an apocalyptic number.

2770431340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2770431340 is an abundant number, since it is smaller than the sum of its proper divisors (3093290132).

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

2770431340 is a wasteful number, since it uses less digits than its factorization.

2770431340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090857 (or 1090855 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 2770431340 is about 52634.8870997174. The cubic root of 2770431340 is about 1404.4807696247.

The spelling of 2770431340 in words is "two billion, seven hundred seventy million, four hundred thirty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 1090721 2181442 4362884 5453605 10907210 21814420 138521567 277043134 554086268 692607835 1385215670 2770431340