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10505514531 = 317205990481
BaseRepresentation
bin10011100100010110…
…10110111000100011
31000010010222102200210
421302023112320203
5133003402431111
64454241345203
7521223254151
oct116213267043
930103872623
1010505514531
1145010a8616
122052338203
13cb56535b5
147193523d1
154174650a6
hex2722d6e23

10505514531 has 8 divisors (see below), whose sum is σ = 14831314704. Its totient is φ = 6591695360.

The previous prime is 10505514511. The next prime is 10505514557. The reversal of 10505514531 is 13541550501.

10505514531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10505514531 - 27 = 10505514403 is a prime.

It is a super-2 number, since 2×105055145312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10505514511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102995190 + ... + 102995291.

It is an arithmetic number, because the mean of its divisors is an integer number (1853914338).

Almost surely, 210505514531 is an apocalyptic number.

10505514531 is a deficient number, since it is larger than the sum of its proper divisors (4325800173).

10505514531 is a wasteful number, since it uses less digits than its factorization.

10505514531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205990501.

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 10505514531 in words is "ten billion, five hundred five million, five hundred fourteen thousand, five hundred thirty-one".

Divisors: 1 3 17 51 205990481 617971443 3501838177 10505514531