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494835138560 = 216572943173
BaseRepresentation
bin1110011001101100111…
…10010000000000000000
31202022020220121120022002
413030312132100000000
531101410243413220
61015154002203132
750515322164310
oct7146636200000
91668226546262
10494835138560
11180949598674
127ba9b3534a8
13378800b8a49
1419d432c9440
15cd124b3c75
hex7336790000

494835138560 has 544 divisors, whose sum is σ = 1445010589440. Its totient is φ = 159073173504.

The previous prime is 494835138529. The next prime is 494835138563. The reversal of 494835138560 is 65831538494.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 494835138496 and 494835138505.

It is not an unprimeable number, because it can be changed into a prime (494835138563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2860318634 + ... + 2860318806.

Almost surely, 2494835138560 is an apocalyptic number.

494835138560 is a gapful number since it is divisible by the number (40) 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 494835138560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722505294720).

494835138560 is an abundant number, since it is smaller than the sum of its proper divisors (950175450880).

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

494835138560 is an equidigital number, since it uses as much as digits as its factorization.

494835138560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 494835138560 in words is "four hundred ninety-four billion, eight hundred thirty-five million, one hundred thirty-eight thousand, five hundred sixty".