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16961097344 = 271031286491
BaseRepresentation
bin11111100101111010…
…11100111010000000
31121210001022000111112
433302331130322000
5234214020103334
611443011102452
71140211643252
oct176275347200
947701260445
1016961097344
117214108524
1233542a1a28
1317a3c22199
14b6c873cd2
156940904ce
hex3f2f5ce80

16961097344 has 32 divisors (see below), whose sum is σ = 34117767840. Its totient is φ = 8398206720.

The previous prime is 16961097313. The next prime is 16961097347. The reversal of 16961097344 is 44379016961.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×169610973442 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16961097292 and 16961097301.

It is not an unprimeable number, because it can be changed into a prime (16961097347) 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 3 ways as a sum of consecutive naturals, for example, 630062 + ... + 656429.

It is an arithmetic number, because the mean of its divisors is an integer number (1066180245).

Almost surely, 216961097344 is an apocalyptic number.

It is an amenable number.

16961097344 is an abundant number, since it is smaller than the sum of its proper divisors (17156670496).

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

16961097344 is a wasteful number, since it uses less digits than its factorization.

16961097344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286608 (or 1286596 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 16961097344 in words is "sixteen billion, nine hundred sixty-one million, ninety-seven thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 32 64 103 128 206 412 824 1648 3296 6592 13184 1286491 2572982 5145964 10291928 20583856 41167712 82335424 132508573 164670848 265017146 530034292 1060068584 2120137168 4240274336 8480548672 16961097344