Search a number
-
+
38126420 = 2251906321
BaseRepresentation
bin1001000101110…
…0001101010100
32122202000121122
42101130031110
534230021140
63441103112
7642032513
oct221341524
978660548
1038126420
111a580a42
1210927a98
137b8bb17
1450c667a
153531ab5
hex245c354

38126420 has 12 divisors (see below), whose sum is σ = 80065524. Its totient is φ = 15250560.

The previous prime is 38126411. The next prime is 38126437. The reversal of 38126420 is 2462183.

It can be written as a sum of positive squares in 2 ways, for example, as 4787344 + 33339076 = 2188^2 + 5774^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38126420.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 953141 + ... + 953180.

It is an arithmetic number, because the mean of its divisors is an integer number (6672127).

Almost surely, 238126420 is an apocalyptic number.

It is an amenable number.

38126420 is an abundant number, since it is smaller than the sum of its proper divisors (41939104).

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

38126420 is a wasteful number, since it uses less digits than its factorization.

38126420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906330 (or 1906328 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 38126420 is about 6174.6595047824. The cubic root of 38126420 is about 336.5699533766.

The spelling of 38126420 in words is "thirty-eight million, one hundred twenty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1906321 3812642 7625284 9531605 19063210 38126420