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16316131023 = 332326399901
BaseRepresentation
bin11110011001000010…
…00110011011001111
31120010002200100001000
433030201012123033
5231403412143043
611255011151343
71115220553053
oct171441063317
946102610030
1016316131023
116a13037805
1231b42a5553
1317004113ca
14b0ad43c63
1565763e2d3
hex3cc8466cf

16316131023 has 32 divisors (see below), whose sum is σ = 25319162880. Its totient is φ = 10364824800.

The previous prime is 16316131019. The next prime is 16316131031. The reversal of 16316131023 is 32013161361.

16316131023 is a `hidden beast` number, since 1 + 6 + 31 + 613 + 10 + 2 + 3 = 666.

It is not a de Polignac number, because 16316131023 - 22 = 16316131019 is a prime.

It is a super-2 number, since 2×163161310232 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16316131033) 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, 113373 + ... + 213273.

It is an arithmetic number, because the mean of its divisors is an integer number (791223840).

Almost surely, 216316131023 is an apocalyptic number.

16316131023 is a deficient number, since it is larger than the sum of its proper divisors (9003031857).

16316131023 is a wasteful number, since it uses less digits than its factorization.

16316131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100196 (or 100190 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 16316131023 its reverse (32013161361), we get a palindrome (48329292384).

The spelling of 16316131023 in words is "sixteen billion, three hundred sixteen million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 3 9 23 27 69 207 263 621 789 2367 6049 7101 18147 54441 99901 163323 299703 899109 2297723 2697327 6893169 20679507 26273963 62038521 78821889 236465667 604301149 709397001 1812903447 5438710341 16316131023