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16442786983 = 717419134851
BaseRepresentation
bin11110101000001000…
…10000010010100111
31120102221000010100111
433110010100102213
5232133323140413
611315333553451
71121316245320
oct172404202247
946387003314
1016442786983
116a78585257
12322a7a5887
131720728a6c
14b1dab3447
1566380bd3d
hex3d41104a7

16442786983 has 8 divisors (see below), whose sum is σ = 18792974720. Its totient is φ = 14092903800.

The previous prime is 16442786959. The next prime is 16442787007. The reversal of 16442786983 is 38968724461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16442786959) and next prime (16442787007).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16442786983 - 25 = 16442786951 is a prime.

It is a super-3 number, since 3×164427869833 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442786923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54508 + ... + 189358.

It is an arithmetic number, because the mean of its divisors is an integer number (2349121840).

Almost surely, 216442786983 is an apocalyptic number.

16442786983 is a deficient number, since it is larger than the sum of its proper divisors (2350187737).

16442786983 is a wasteful number, since it uses less digits than its factorization.

16442786983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152277.

The product of its digits is 13934592, while the sum is 58.

The spelling of 16442786983 in words is "sixteen billion, four hundred forty-two million, seven hundred eighty-six thousand, nine hundred eighty-three".

Divisors: 1 7 17419 121933 134851 943957 2348969569 16442786983