Search a number
-
+
38068420 = 22513146417
BaseRepresentation
bin1001000100111…
…0000011000100
32122122002001111
42101032003010
534221142140
63435534404
7641401435
oct221160304
978562044
1038068420
111a541405
12108ba404
137b6b5c0
1450ad48c
15351e7ea
hex244e0c4

38068420 has 24 divisors (see below), whose sum is σ = 86093784. Its totient is φ = 14055936.

The previous prime is 38068411. The next prime is 38068421. The reversal of 38068420 is 2486083.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4056196 + 34012224 = 2014^2 + 5832^2 .

It is not an unprimeable number, because it can be changed into a prime (38068421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72949 + ... + 73468.

It is an arithmetic number, because the mean of its divisors is an integer number (3587241).

Almost surely, 238068420 is an apocalyptic number.

It is an amenable number.

38068420 is an abundant number, since it is smaller than the sum of its proper divisors (48025364).

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

38068420 is a wasteful number, since it uses less digits than its factorization.

38068420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146439 (or 146437 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 38068420 is about 6169.9611019844. The cubic root of 38068420 is about 336.3991972054.

The spelling of 38068420 in words is "thirty-eight million, sixty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 146417 292834 585668 732085 1464170 1903421 2928340 3806842 7613684 9517105 19034210 38068420