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19470496444 = 2271379375417
BaseRepresentation
bin10010001000100010…
…000011001010111100
31212020221011200220221
4102020202003022330
5304333421341234
612540012151124
71256332326520
oct221042031274
955227150827
1019470496444
118291651183
1239347684a4
131ab3a92819
14d29c4dd80
1578e525eb4
hex4888832bc

19470496444 has 48 divisors (see below), whose sum is σ = 39274345152. Its totient is φ = 8273221632.

The previous prime is 19470496439. The next prime is 19470496459. The reversal of 19470496444 is 44469407491.

It is a junction number, because it is equal to n+sod(n) for n = 19470496391 and 19470496400.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3591624 + ... + 3597040.

It is an arithmetic number, because the mean of its divisors is an integer number (818215524).

Almost surely, 219470496444 is an apocalyptic number.

19470496444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19470496444 is an abundant number, since it is smaller than the sum of its proper divisors (19803848708).

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

19470496444 is a wasteful number, since it uses less digits than its factorization.

19470496444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6502 (or 6500 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 19470496444 in words is "nineteen billion, four hundred seventy million, four hundred ninety-six thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 137 274 548 937 959 1874 1918 3748 3836 5417 6559 10834 13118 21668 26236 37919 75838 128369 151676 256738 513476 742129 898583 1484258 1797166 2968516 3594332 5075729 5194903 10151458 10389806 20302916 20779612 35530103 71060206 142120412 695374873 1390749746 2781499492 4867624111 9735248222 19470496444