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38978298 = 2322165461
BaseRepresentation
bin1001010010110…
…0001011111010
32201100022011200
42110230023322
534434301143
63511235030
7652211232
oct224541372
981308150
1038978298
1120002a77
1211078a76
1380c97a8
145268cc2
15364e1d3
hex252c2fa

38978298 has 12 divisors (see below), whose sum is σ = 84453018. Its totient is φ = 12992760.

The previous prime is 38978273. The next prime is 38978299. The reversal of 38978298 is 89287983.

38978298 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 only one way, i.e., 38975049 + 3249 = 6243^2 + 57^2 .

It is not an unprimeable number, because it can be changed into a prime (38978299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1082713 + ... + 1082748.

Almost surely, 238978298 is an apocalyptic number.

38978298 is an abundant number, since it is smaller than the sum of its proper divisors (45474720).

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

38978298 is a wasteful number, since it uses less digits than its factorization.

38978298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165469 (or 2165466 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 38978298 is about 6243.2602060142. The cubic root of 38978298 is about 339.0582300056.

It can be divided in two parts, 389 and 78298, that added together give a palindrome (78687).

The spelling of 38978298 in words is "thirty-eight million, nine hundred seventy-eight thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 9 18 2165461 4330922 6496383 12992766 19489149 38978298