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1974856068 = 2232172189817
BaseRepresentation
bin111010110110101…
…1110100110000100
312002122001002020100
41311231132212010
513021030343233
6523544004100
766636666603
oct16555364604
95078032210
101974856068
11923833659
12471460630
132561b27b3
1414a3d1a3a
15b8597813
hex75b5e984

1974856068 has 54 divisors (see below), whose sum is σ = 5302945466. Its totient is φ = 619559424.

The previous prime is 1974856033. The next prime is 1974856073. The reversal of 1974856068 is 8606584791.

1974856068 is a `hidden beast` number, since 1 + 9 + 74 + 8 + 560 + 6 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1222341444 + 752514624 = 34962^2 + 27432^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 84505 + ... + 105312.

Almost surely, 21974856068 is an apocalyptic number.

1974856068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1974856068 is an abundant number, since it is smaller than the sum of its proper divisors (3328089398).

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

1974856068 is a wasteful number, since it uses less digits than its factorization.

1974856068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189861 (or 189839 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 1974856068 is about 44439.3526955558. The cubic root of 1974856068 is about 1254.6188729617.

The spelling of 1974856068 in words is "one billion, nine hundred seventy-four million, eight hundred fifty-six thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 289 306 578 612 867 1156 1734 2601 3468 5202 10404 189817 379634 569451 759268 1138902 1708353 2277804 3226889 3416706 6453778 6833412 9680667 12907556 19361334 29042001 38722668 54857113 58084002 109714226 116168004 164571339 219428452 329142678 493714017 658285356 987428034 1974856068