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19835106768 = 243345914599
BaseRepresentation
bin10010011110010000…
…111011010111010000
31220012100020211021000
4102132100323113100
5311110241404033
613040115102000
71301350424421
oct223620732720
956170224230
1019835106768
118459445324
123a168a1900
131b41492b89
14d62441648
157b1548a13
hex49e43b5d0

19835106768 has 40 divisors (see below), whose sum is σ = 56934104000. Its totient is φ = 6611702112.

The previous prime is 19835106763. The next prime is 19835106769. The reversal of 19835106768 is 86760153891.

19835106768 is a `hidden beast` number, since 1 + 9 + 8 + 3 + 510 + 67 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19835106763) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22956868 + ... + 22957731.

It is an arithmetic number, because the mean of its divisors is an integer number (1423352600).

Almost surely, 219835106768 is an apocalyptic number.

19835106768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19835106768 is an abundant number, since it is smaller than the sum of its proper divisors (37098997232).

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

19835106768 is a wasteful number, since it uses less digits than its factorization.

19835106768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45914616 (or 45914604 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 19835106768 in words is "nineteen billion, eight hundred thirty-five million, one hundred six thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 45914599 91829198 137743797 183658396 275487594 367316792 413231391 550975188 734633584 826462782 1101950376 1239694173 1652925564 2203900752 2479388346 3305851128 4958776692 6611702256 9917553384 19835106768