Search a number
-
+
169348072 = 2321168509
BaseRepresentation
bin10100001100000…
…00101111101000
3102210122202212211
422012000233220
5321323114242
624445414504
74124302105
oct1206005750
9383582784
10169348072
1187657793
124886a434
132911467a
14186c3aac
15ed02317
hexa180be8

169348072 has 8 divisors (see below), whose sum is σ = 317527650. Its totient is φ = 84674032.

The previous prime is 169348063. The next prime is 169348087. The reversal of 169348072 is 270843961.

It can be written as a sum of positive squares in only one way, i.e., 91661476 + 77686596 = 9574^2 + 8814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10584247 + ... + 10584262.

Almost surely, 2169348072 is an apocalyptic number.

It is an amenable number.

169348072 is a deficient number, since it is larger than the sum of its proper divisors (148179578).

169348072 is a wasteful number, since it uses less digits than its factorization.

169348072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21168515 (or 21168511 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 169348072 is about 13013.3804985484. The cubic root of 169348072 is about 553.2567894636.

The spelling of 169348072 in words is "one hundred sixty-nine million, three hundred forty-eight thousand, seventy-two".

Divisors: 1 2 4 8 21168509 42337018 84674036 169348072