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1906933412808 = 233269138328779
BaseRepresentation
bin11011101111111110000…
…101101011001111001000
320202022010110122101001100
4123233332011223033020
5222220344423202213
64020011053021400
7254525405365044
oct33577605531710
96668113571040
101906933412808
116757a921a416
122696b0184860
1310aa91315578
14684205b5024
153490c807773
hex1bbfe16b3c8

1906933412808 has 48 divisors (see below), whose sum is σ = 5172085573200. Its totient is φ = 634724563680.

The previous prime is 1906933412807. The next prime is 1906933412851. The reversal of 1906933412808 is 8082143396091.

1906933412808 is a `hidden beast` number, since 1 + 90 + 69 + 3 + 3 + 412 + 80 + 8 = 666.

It is a super-2 number, since 2×19069334128082 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1906933412807) 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, 19114638 + ... + 19214141.

It is an arithmetic number, because the mean of its divisors is an integer number (107751782775).

Almost surely, 21906933412808 is an apocalyptic number.

1906933412808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1906933412808 is an abundant number, since it is smaller than the sum of its proper divisors (3265152160392).

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

1906933412808 is a wasteful number, since it uses less digits than its factorization.

1906933412808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38329482 (or 38329475 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 1906933412808 in words is "one trillion, nine hundred six billion, nine hundred thirty-three million, four hundred twelve thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 691 1382 2073 2764 4146 5528 6219 8292 12438 16584 24876 49752 38328779 76657558 114986337 153315116 229972674 306630232 344959011 459945348 689918022 919890696 1379836044 2759672088 26485186289 52970372578 79455558867 105940745156 158911117734 211881490312 238366676601 317822235468 476733353202 635644470936 953466706404 1906933412808