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1368850580 = 22582732
BaseRepresentation
bin101000110010111…
…0000000010010100
310112101201210222122
41101211300002110
510300411204310
6343455115112
745631016006
oct12145600224
93471653878
101368850580
11642753779
12322512a98
1318a793576
14cdb24376
1580290555
hex51970094

1368850580 has 18 divisors (see below), whose sum is σ = 2874933726. Its totient is φ = 547474048.

The previous prime is 1368850579. The next prime is 1368850621. The reversal of 1368850580 is 850588631.

It can be written as a sum of positive squares in 3 ways, for example, as 431143696 + 937706884 = 20764^2 + 30622^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161324 + ... + 169596.

Almost surely, 21368850580 is an apocalyptic number.

1368850580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1368850580 is an abundant number, since it is smaller than the sum of its proper divisors (1506083146).

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

1368850580 is an frugal number, since it uses more digits than its factorization.

1368850580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16555 (or 8280 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 1368850580 is about 36997.9807557115. The cubic root of 1368850580 is about 1110.3298481348.

The spelling of 1368850580 in words is "one billion, three hundred sixty-eight million, eight hundred fifty thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 8273 16546 33092 41365 82730 165460 68442529 136885058 273770116 342212645 684425290 1368850580