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16768653950 = 252454773757
BaseRepresentation
bin11111001110111110…
…10101101001111110
31121021122011212210102
433213133111221332
5233320233411300
611411534241102
71132354130636
oct174737255176
947248155712
1016768653950
1171255169a4
1232bb956192
1317730b2559
14b5109b6c6
1568222a0d5
hex3e77d5a7e

16768653950 has 24 divisors (see below), whose sum is σ = 31196978712. Its totient is φ = 6705895520.

The previous prime is 16768653917. The next prime is 16768653959. The reversal of 16768653950 is 5935686761.

It is a happy number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16768653959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190472 + ... + 264228.

It is an arithmetic number, because the mean of its divisors is an integer number (1299874113).

Almost surely, 216768653950 is an apocalyptic number.

16768653950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16768653950 is a deficient number, since it is larger than the sum of its proper divisors (14428324762).

16768653950 is a wasteful number, since it uses less digits than its factorization.

16768653950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78316 (or 78311 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 16768653950 in words is "sixteen billion, seven hundred sixty-eight million, six hundred fifty-three thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 4547 9094 22735 45470 73757 113675 147514 227350 368785 737570 1843925 3687850 335373079 670746158 1676865395 3353730790 8384326975 16768653950