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1368481995 = 32553573787
BaseRepresentation
bin101000110010001…
…0110000011001011
310112101001002101100
41101210112003023
510300312410440
6343443152443
745624622266
oct12144260313
93471032340
101368481995
11642521861
12322375723
1318a69487a
14cda69cdd
158021b230
hex519160cb

1368481995 has 24 divisors (see below), whose sum is σ = 2416795056. Its totient is φ = 716084928.

The previous prime is 1368481987. The next prime is 1368482039. The reversal of 1368481995 is 5991848631.

1368481995 is a `hidden beast` number, since 13 + 68 + 481 + 9 + 95 = 666.

It is not a de Polignac number, because 1368481995 - 23 = 1368481987 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284509 + ... + 289278.

It is an arithmetic number, because the mean of its divisors is an integer number (100699794).

Almost surely, 21368481995 is an apocalyptic number.

1368481995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1368481995 is a deficient number, since it is larger than the sum of its proper divisors (1048313061).

1368481995 is a wasteful number, since it uses less digits than its factorization.

1368481995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573851 (or 573848 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 1368481995 is about 36992.9992701322. Note that the first 3 decimals coincide. The cubic root of 1368481995 is about 1110.2301811415.

Adding to 1368481995 its sum of digits (54), we get a square (1368482049 = 369932).

The spelling of 1368481995 in words is "one billion, three hundred sixty-eight million, four hundred eighty-one thousand, nine hundred ninety-five".

Divisors: 1 3 5 9 15 45 53 159 265 477 795 2385 573787 1721361 2868935 5164083 8606805 25820415 30410711 91232133 152053555 273696399 456160665 1368481995