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19285291696 = 2411283120017
BaseRepresentation
bin10001111101011111…
…100011001010110000
31211210000200022202211
4101331133203022300
5303444013313241
612505354421504
71251623163136
oct217537431260
954700608684
1019285291696
1181a7054100
1238a2731894
131a845b8908
14d0d3dd756
1577d140781
hex47d7e32b0

19285291696 has 60 divisors (see below), whose sum is σ = 41566073976. Its totient is φ = 8660354560.

The previous prime is 19285291693. The next prime is 19285291723. The reversal of 19285291696 is 69619258291.

It is a self number, because there is not a number n which added to its sum of digits gives 19285291696.

It is not an unprimeable number, because it can be changed into a prime (19285291693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100680 + ... + 220696.

Almost surely, 219285291696 is an apocalyptic number.

19285291696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19285291696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20783036988).

19285291696 is an abundant number, since it is smaller than the sum of its proper divisors (22280782280).

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

19285291696 is a wasteful number, since it uses less digits than its factorization.

19285291696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120130 (or 120113 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 58.

The spelling of 19285291696 in words is "nineteen billion, two hundred eighty-five million, two hundred ninety-one thousand, six hundred ninety-six".

Divisors: 1 2 4 8 11 16 22 44 83 88 121 166 176 242 332 484 664 913 968 1328 1826 1936 3652 7304 10043 14608 20086 40172 80344 120017 160688 240034 480068 960136 1320187 1920272 2640374 5280748 9961411 10561496 14522057 19922822 21122992 29044114 39845644 58088228 79691288 109575521 116176456 159382576 219151042 232352912 438302084 876604168 1205330731 1753208336 2410661462 4821322924 9642645848 19285291696