Search a number
-
+
68148702 = 234420671
BaseRepresentation
bin1000000111111…
…01110111011110
311202020022110000
410003331313132
5114421224302
610432355130
71455153156
oct403756736
9152208400
1068148702
1135517146
121a9a5aa6
1311170c9b
14909d766
155eb231c
hex40fddde

68148702 has 20 divisors (see below), whose sum is σ = 152703936. Its totient is φ = 22716180.

The previous prime is 68148697. The next prime is 68148713. The reversal of 68148702 is 20784186.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 210174 + ... + 210497.

Almost surely, 268148702 is an apocalyptic number.

68148702 is an abundant number, since it is smaller than the sum of its proper divisors (84555234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68148702 is a wasteful number, since it uses less digits than its factorization.

68148702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420685 (or 420676 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 68148702 is about 8255.2227105027. Note that the first 3 decimals coincide. The cubic root of 68148702 is about 408.4628182254.

The spelling of 68148702 in words is "sixty-eight million, one hundred forty-eight thousand, seven hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 162 420671 841342 1262013 2524026 3786039 7572078 11358117 22716234 34074351 68148702