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16287434031 = 311960151407
BaseRepresentation
bin11110010101100111…
…01000010100101111
31120001002200101011110
433022303220110233
5231324040342111
611252104123103
71114421622261
oct171263502457
946032611143
1016287434031
1169a8917290
1231a6766493
1316c74a453b
14b071d3b31
15654d715a6
hex3cace852f

16287434031 has 16 divisors (see below), whose sum is σ = 23693741568. Its totient is φ = 9869952000.

The previous prime is 16287433997. The next prime is 16287434047. The reversal of 16287434031 is 13043478261.

It is not a de Polignac number, because 16287434031 - 210 = 16287433007 is a prime.

It is a super-2 number, since 2×162874340312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16287434531) 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 15 ways as a sum of consecutive naturals, for example, 291130 + ... + 342536.

It is an arithmetic number, because the mean of its divisors is an integer number (1480858848).

Almost surely, 216287434031 is an apocalyptic number.

16287434031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16287434031 is a deficient number, since it is larger than the sum of its proper divisors (7406307537).

16287434031 is a wasteful number, since it uses less digits than its factorization.

16287434031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61022.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 16287434031 in words is "sixteen billion, two hundred eighty-seven million, four hundred thirty-four thousand, thirty-one".

Divisors: 1 3 11 33 9601 28803 51407 105611 154221 316833 565477 1696431 493558607 1480675821 5429144677 16287434031