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17948086850 = 2521970926647
BaseRepresentation
bin10000101101110010…
…100001001001000010
31201022211111021120102
4100231302201021002
5243224202234400
612124545442402
71203525135551
oct205562411102
951284437512
1017948086850
117680255331
12358a940402
131900555445
14c23995d98
15700a519d5
hex42dca1242

17948086850 has 48 divisors (see below), whose sum is σ = 35191348800. Its totient is φ = 6791532480.

The previous prime is 17948086829. The next prime is 17948086859. The reversal of 17948086850 is 5868084971.

It is not an unprimeable number, because it can be changed into a prime (17948086859) by changing a digit.

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, 660227 + ... + 686873.

It is an arithmetic number, because the mean of its divisors is an integer number (733153100).

Almost surely, 217948086850 is an apocalyptic number.

17948086850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17948086850 is a deficient number, since it is larger than the sum of its proper divisors (17243261950).

17948086850 is a wasteful number, since it uses less digits than its factorization.

17948086850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27387 (or 27382 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 17948086850 in words is "seventeen billion, nine hundred forty-eight million, eighty-six thousand, eight hundred fifty".

Divisors: 1 2 5 10 19 25 38 50 95 190 475 709 950 1418 3545 7090 13471 17725 26647 26942 35450 53294 67355 133235 134710 266470 336775 506293 666175 673550 1012586 1332350 2531465 5062930 12657325 18892723 25314650 37785446 94463615 188927230 358961737 472318075 717923474 944636150 1794808685 3589617370 8974043425 17948086850