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169768089604 = 22172146858209
BaseRepresentation
bin1001111000011011110…
…1110111100000000100
3121020012102121111212101
42132012331313200010
510240141112331404
6205553531201444
715160003644361
oct2360675674004
9536172544771
10169768089604
1165aa872a493
1228a9aba6284
1313016ba93b9
148306d49468
1546392db2a4
hex2786f77804

169768089604 has 18 divisors (see below), whose sum is σ = 315598293290. Its totient is φ = 79890865152.

The previous prime is 169768089593. The next prime is 169768089613. The reversal of 169768089604 is 406980867961.

It is a happy number.

169768089604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 125314584004 + 44453505600 = 353998^2 + 210840^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 73427949 + ... + 73430260.

Almost surely, 2169768089604 is an apocalyptic number.

It is an amenable number.

169768089604 is a deficient number, since it is larger than the sum of its proper divisors (145830203686).

169768089604 is a wasteful number, since it uses less digits than its factorization.

169768089604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146858247 (or 146858228 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 169768089604 in words is "one hundred sixty-nine billion, seven hundred sixty-eight million, eighty-nine thousand, six hundred four".

Divisors: 1 2 4 17 34 68 289 578 1156 146858209 293716418 587432836 2496589553 4993179106 9986358212 42442022401 84884044802 169768089604